I still get a problem with 4.27… that i have with 4.26. I dont know which other versions have it but it was working fine back in the days of 4.20. If i try to build reflection captures in my level at the same time… it crashes the editor with an out of memory error. It did this with a single rtx 3090 and it also does it with dual rtx 3090 in nvlink. What can i do??? Will you ever fix this??? I mean one would think 48 gb of video memory would be enough.
Hi there!
I see switchboard is now being used to run the new NDisplay Configs. Figured that out… however it doesn’t seem like the nDisplay window offset works the same way it did in the original config files. I’m trying to have my rendered window appear on a third monitor in Windows (not delegated as the main monitor), but Ndisplay will only run and display a window beginning at 0,0 on Windows desktop space. I’m trying to add an offset so it appears on the third monitor (i.e. the nDisplay window renders at (-1080,1440)). Closest I could get in the new nDisplay config was the position offset on the Host Cluster element details pane. Any help is great!
From this page, I have learned that remote control can call the functions in the blueprint, but I cannot find any custom functions in the function libraries of Remote Control Preset. Can I add custom functions on 4.27?
Additionally - does anyone know if the multi-user setup within switchboard is functioning properly? I’m not sure if mine’s working and I don’t know if there’s anything I need to set up beforehand. Doesn’t seem to work out of the box…
I’ve had it working. If you go into settings, you need to select the auto-start server, and auto-connect options. I don’t remember having to set up anything else.
You will need to use your own engine from github and compile the plugins there. Copy them to the plugins folder inside your ue4 engine plugins folder (after you built the engine once) and build with the new plugins.
I’d love for 4.27 to be already released, but judging by the daily commits it’s not happening any time soon 
2 Likes
Does anyone have a release date for 4.27?
In the middle of production for a project launching in September.
Ok to use 4.27?
1 Like
Another problem is “VideoEncoderInput.h:9:10: fatal error: ‘CudaModule.h’ file not found”, could someone help me solve the problem?
LQ lightmaps not being denoised has been fixed in the next preview of 4.27. If you have BSPs they are not supported by GPULM thus unbuilt
4 Likes
Any eta on 4.27 release of GPU Lightmass?
Probably at the same time when 4.27 is released 
Guys, could anyone make a how to, to load st-maps from nuke into ue? really need it
thx, cheers
UPDATE!
We have just released Preview 3 for 4.27! Thank you for your continued help in testing the 4.27 build before its official release. As a reminder, the Preview builds are for testing only, and should not be used for the active development of your project.
For a list of known issues affecting this latest preview, please follow the links provided on the first post in this thread.
Cheers!
Fixed in Preview 3
| Issue | Summary |
|---|---|
| UE-119386 | Skeletal Mesh LOD reduction does not use retargeting for bake pose |
| UE-118584 | Override Game Mode in Media Render Queue does not work properly |
| UE-118295 | Crash adding a key to a SectionToKey |
| UE-118397 | UMG Sequencer: Animating FMargin tracks from relative-to-absolute with easing do not blend properly without a relative track (legacy) |
| UE-118829 | selected nodes only not retaining upon selecting keys |
| UE-118837 | Deactivating a shot section from scripting does not affect evaluation |
| UE-118777 | Incorrect additive keyframing behaviour |
| UE-118979 | Deleting transform track can fail to restore state |
| UE-118984 | Select Key in Selection Range selects keys on actors that are filtered out of the Outliner |
| UE-118680 | Non smooth (staircase) curves when recording using existing levelsequence with Timecode framerate lower than engine framerate |
| UE-119063 | PlayTo overshoots in low framerate situations |
| UE-119051 | Project Settings for Take Recorder’s Animation Recorder do not persist after editor restart |
| UE-119293 | Guid of Actor Reference does NOT replace in UMovieSceneActorReferenceSection::OnBindingsUpdated |
| UE-119482 | Shift Marquee Selection crashes Sequencer |
| UE-119463 | Sequencer: Auto tangents aren’t recalculated if you set values in sequencer or if you delete key in curve editor |
| UE-119715 | Take Recorder records a camera but creates a camera cut section with unresolved bindings |
| UE-119960 | Take Recorder inaccuracies with attached objects |
| UE-120164 | Recording nearby spawnable without starting at current timecode sets the sequences end playback range to be the current timecode |
| UE-120161 | Sequencer: Python: Make sure to use specified FBX and Control Rig Import settings from Python |
| UE-120083 | Animations are not recorded correctly when Save Record Assets is enabled. |
| UE-120082 | Two animation assets are created when Pawn is recorded in TakeRecorder. |
| UE-104004 | Oscilloscope Object in Niagara Only Reads a Quarter of the Buffer When Part of an Emitter that Targets the CPU |
| UE-117888 | [Audio Import] - Audio types other than Wavs fail to import; unrecognized sound format |
| UE-100009 | [Concurrency][Resolution Rules] - Stop Lowest Priority Then Prevent New doesn’t stop lowest priority sound and doesn’t prevent new sound in AudioQA map |
| UE-99966 | [Concurrency][Resolution Rules] - Stop Lowest Priority does not stop lowest priority sound |
| UE-119917 | Deprecation warning for FDerivedDataCacheInterface::GatherUsageStats with VS2017 |
| UE-119173 | Severe performance regression when using UnrealPak with file sizes >int32 |
| UE-119181 | GitHub 8189 : Adding support for Linux for RiderSourceCodeAccessPlugin |
| UE-118800 | macOS Big Sur libc.dylib not found |
| UE-119096 | Untracked files are present in Github build |
| UE-113404 | DMX Previs Sample (Missing files from build and wrong show file extension) |
| UE-118769 | Collaborative Viewer - Material Issues with Loading States and 3d Cut Volumes |
| UE-118767 | Collab Viewer - Oculus VR and Steam are disabled - should be Enabled |
| UE-118853 | Replace Handheld AR Template icon in the Games category with the previous one |
| UE-119458 | Collaborative Viewer - Remove Steam and Oculus VR PLugin |
| UE-117080 | Meshes change their position upon interacting with Attach/Detach trigger boxes in TM-ActorToComponentOverNetwork, TM-ActorToActorOverNetwork and TM-ComponentToComponentOverNetwork maps |
| UE-117059 | Renaming gameplay tag back to its original name after editor restart removes it from Tag List |
| UE-118544 | Circular references between blueprints are not retained when nativized |
| UE-118545 | There are no objects on the TM-Nat_BP level in packaged Inclusive game |
| UE-118816 | [CrashReport]UE4Editor-BlueprintGraph!UK2Node_Timeline::PostPasteNode() [K2Node_Timeline.cpp:212] |
| UE-118416 | Electra is flagged as beta plugin incorrectly |
| UE-117095 | Assertion failed: InputState == EInputState::AwaitingEOS /…/Decoder/Android/VideoDecoderH264_Android.cpp] QAGame crashes on Android |
| UE-120073 | Setting up Mipmapping for a JPG or PNG seqeunce crashes the engine |
| UE-118943 | DefaultGameMoviePlayer does not respect RHI suspension |
| UE-119763 | EXR mipmapping breaks when the folder is non-square res (example 1024x512) |
| UE-119026 | ShooterGame Fails to open on Mac when attempting to open with certain commands |
| UE-118466 | ShooterGame Client/Host crash when joining game via Hosts Invite through System UI |
| UE-120203 | EOS: String buffers are incorrect size |
| UE-118195 | PixelStreaming crash with DX12 RHI |
| UE-118846 | VolumetricLightmapVoxelization.usf(132:21): (error, code:5476) - ambiguous call to ‘dot’ |
| UE-119536 | Crash on startup due to race condition on FPlatformProcess::PushDllDirectory |
| UE-118949 | Failure to launch UE 4.27 on CentOS with /lib64/libstdc++.so.6: version `GLIBCXX_3.4.21’ not found |
| UE-119403 | Installed build creation fails with RunUAT ERROR: AutomationTool was unable to run successfully |
| UE-119776 | Assert on closing Editor after creating Third Party Library plugin on Linux |
| UE-101681 | Error while creating Third party plugin: Failed to load example third party library |
| UE-117844 | SkySphereBlueprint renders on Mac with artifacts |
| UE-119217 | UnrealBuildTool can crash on Apple Silicon |
| UE-118830 | Mac - 4.27 - Test_font displayed incorrectly in Text Render |
| UE-118436 | Crash when launching ShooterGame with -game argument on Mac |
| UE-118734 | vfork has been deprecated, use posix_spawn instead |
| UE-87774 | MAC rect light does not use assigned source texture |
| UE-120156 | FASTBuild shader compilation is broken on macOS |
| UE-116537 | VirtualTextureFeedback never success to map on Android if open a RVT Level from an empty level |
| UE-115005 | Package Fails for iOS - library not found for libCrashReporter.a |
| UE-118786 | GitHub 8165 : Arm - Fix GMaxWorkGroupInvocations on Vulkan |
| UE-115236 | GitHub 7979 : Fixed line endings for Android installer scripts |
| UE-117658 | ES3_1 Preview Rendering Level renders black when MobileHDR=false |
| UE-119771 | After launching UE4Editor -game -featureleveles31 once, bPreferFeatureLevelES31=true gets saved to the ini file |
| UE-118186 | BinkMedia’ and ‘DatasmithC4DImporter’ plugins have copyright issues |
| UE-119737 | High VRAM usage causes GPU Crash when attempting to render Bink Video - FD3D12Resource Error |
| UE-118527 | Clicking “Convert to Parameter” on constant 3-vector node in Material Editor causes crash |
| UE-119035 | When loading any project in Binary the editor will compile shaders |
| UE-118240 | TM-AnimPhys (UE4). Dark textures and too dark shadows on the level |
| UE-118752 | Crash when shifting world origin in map with landscape that writes to RVT |
| UE-118603 | Renaming parameters in Niagara scripts does not work |
| UE-118773 | Engine tests and old assets with mesh renderers have their mesh replaced by a default gnomon |
| UE-118615 | GitHub 8157 : Make NiagaraDataInterfaceArrayFunctionLibrary.h methods public |
| UE-118641 | Parameters do not automatically link to their Parameter Definition when renamed to match on a pin |
| UE-118461 | The Set Parameter module’s add parameter menu displays the code-based parameters instead of the Parameter Definitions |
| UE-118521 | Renaming a Parameter Definition while an asset containing subscribed parameters is open will create multiple renamed x transactions for each updated reference |
| UE-119439 | GPU Content Examples fail while in and after exiting Simulate mode |
| UE-119573 | Niagara Count Buffer Leak when Editor out of focus |
| UE-118523 | Crash renaming a Parameter Definition used in scripts/systems |
| UE-119928 | -wshadow Shadowing error in NiagaraParameterDefinitionsSubscriber |
| UE-120092 | Typo in RibbonRendererProperties: RibbonUV0Override & RibbonUV0RangeOverride |
| UE-96474 | Subsurface profile rt transmission broken with denoiser |
| UE-99901 | subsurface scattering flickering under 4.26 |
| UE-119079 | Punctual lights overflow radiance buffer when no source radius is set |
| UE-119627 | Ray Tracing reflections do not support Hierarchical Instanced Static Mesh |
| UE-119471 | DXGIGetDebugInterface1 could not be located in the dynamic link library dgi.dll when launching editor on clean machines |
| UE-119615 | Stadia crashes when trying to use HDR mode |
| UE-119297 | Vulkan bloom convolution causes crash |
| UE-119539 | Crash in the TwinMotion project when counter UAVs are used |
| UE-115607 | Hair physics not working in scene capture |
| UE-119341 | The title hangs on the Warmup Island on Performance Alpha Mode with TArray<AVEncoder::FMediaPacket,TSizedDefaultAllocator<32>. |
| UE-118936 | Vehicle templates are setup to use Chaos |
| UE-117328 | Crash appears after reloading asset |
| UE-118707 | Crash when baking materials for some skeletal meshes (like those found in Epic’s Car Configurator project) |
| UE-118812 | GroomCache interpolation doesn’t work when scrubbing between 2 frames in Sequencer |
| UE-118623 | Datasmith Sketchup msi: won’t install with specific region settings |
| UE-118737 | Sketchup - Windows - Error at runtime in sketchup after plugin installation |
| UE-118500 | DatasmithRhinoExporter - Plugin crash when deleting texture with DirectLink enabled |
| UE-118661 | ArchiCad - Mac - Impossible to install plugin because need to be notarize |
| UE-119483 | SolidWorks - Datasmith plugin - UI problems |
| UE-118970 | Display states are not exported as variants if they’re not linked to configurations |
| UE-119624 | DatasmithExporters on Mac automated build should .zip generated plugin versions together |
| UE-119870 | Rotated UVs after Datasmith export from Solidworks |
| UE-119678 | Datasmith Solidworks Exporter plugin MSI installer does not work with Solidworks 2020 |
| UE-117464 | Import CAD: Degenerate geometry |
| UE-93464 | Inventor Assembly imports incomplete or missing geometry |
| UE-119435 | HLOD not working in sublevels in cooked build when Save LODActors to HLODPackages is set to true |
| UE-118787 | Linux: USD error with plugin enabled - libusd.so’ for ‘usd’ failed: No such file or directory |
| UE-118602 | [Crash Report] UE4Editor-UnrealEd!FReimportManager::ValidateAllSourceFileAndReimport(TArray<UObject *,TSizedDefaultAllocator<32> > &,bool,int,bool,bool) [Editor.cpp:582] |
| UE-118311 | Take recorder parent hierarchy not working in MU |
| UE-118775 | Can’t remotely take record after exiting MU |
| UE-119479 | Crash when persisting changes from MU |
| UE-119633 | Use weak object reference for sequencer actors |
| UE-120118 | Multi-User - Since CL 16909910 Opening a sequences is not propagated to the nDisplay nodes |
| UE-118548 | Saving a sublevel that contains the nDisplay config asset crashes nDisplay nodes |
| UE-118561 | No master sequence recorded - only sub scenes - when recording stage actor in MU |
| UE-118110 | [CrashReport] UE4Editor-SlateCore!TArray<int,TSizedDefaultAllocator<32> >::ResizeGrow |
| UE-120206 | ICFX Camera chroma does not create transaction when using color picker. |
| UE-118530 | Undo stack gets corrupted when using color picker in widgets |
| UE-118487 | UE Logo needs to be updated to the new style |
| UE-118273 | The STypeLiveLink plugin should be disabled on the GoldenPath project |
| UE-119028 | nDisplay packaging fails |
| UE-118559 | Playing multiple EXRs in nDisplay crashes nodes |
| UE-108821 | Maya plugins do not contain options to set Unicast and Static Endpoints. |
| UE-119582 | Playing multiple EXRs in nDisplay crashes nodes - Mip Maps |
| UE-119756 | Attempting to play AJA media source with Media Player crashes |
| UE-118794 | Can’t evaluate calibrated focal length when zoom not streamed through LiveLink |
| UE-119614 | Editing a LensFile asset changes all previously recorded level sequences that reference that LensFile |
| UE-119854 | LiveLinkCamera: Cannot override filmback sensor dimensions on camera component when evaluating a LensFile |
| UE-119583 | Cinecamera FIZ min max threshold preventing calibration values to be used |
| UE-118895 | Post Process Volume Lacks Control for Offsetting Screen Temperature |
| UE-118713 | Unable to set channel# in DMX Output Console Faders |
| UE-103731 | DMX Template project - Yoke of Moving Matrix sticks through the head. |
| UE-117037 | DMX Pixel Mapping - Matrix fixture generates infinite logs that can lead to a freeze of UE |
| UE-97379 | Crash - using Matrix and DMX Fixture BPs |
| UE-118878 | DMX plugins causing Linux and Mac Editors to crash when opening GoldenPath |
| UE-119258 | DMX - Uninitialized variables in FDMXInputPortConfig and FDMXOutputPortConfig |
| UE-119000 | DMX - Cannot set IP address for DMX ports via commandline |
| UE-117026 | DMX - Pixel Mapping - Undo is not supported in Designer |
| UE-117139 | DMX Library - Mode Selection Box in Patching Tab is buggy. |
| UE-119717 | Divide by zero warning in DMX Fixture Zoom Component |
| UE-119588 | DMX GDTF parser bug |
| UE-119910 | DMX - Dynamically created level sequence player do not play DMX in packaged builds |
| UE-119574 | DMX Pixel Mapping - Cells index and output do not follow the PixelMapping distribution |
| UE-120189 | DMXPrevis Sample needs updating for 427 since we changed the plugin and fixtures behaviour |
| UE-118745 | Editor Crash on selecting/hovering Custom Filter in Level Screenshot Editor |
| UE-119601 | Level Snapshots - Non-Unity compilation error after 16842999 |
| UE-118991 | No warning when over-writing a level snapshot |
| UE-118428 | Crash on the render nodes when loading a level snapshot |
| UE-118669 | LiveLink - SteamVR doesn’t work upon restart if used with a LiveLink default preset |
| UE-119579 | Crash when PrestonMDR LiveLink source is added from a Preset |
| UE-119849 | LiveLinkPrestonMDR: Warning message triggered when setting Incoming Data Mode to Encoder Data |
| UE-118236 | OpenXR doesn’t support Vive Trackers |
| UE-119939 | MayaLiveLink Plugin - UDP Endpoints are not reverted to 0.0.0.0:0 after deleting the IP addresses |
| UE-118635 | nDisplay Root actor initialization resets world instance on save in MultiUser |
| UE-118383 | Enable flag for OCIO doesn’t work properly |
| UE-118040 | Per-Viewport and Per-Node OCIO Settings Do Not All Work |
| UE-118437 | OCIO is disabled when moving the nDisplay config actor over multi user |
| UE-118338 | Final Adjustments to nDisplay Motion Blur Settings for Process/Traveling Shots |
| UE-118337 | UX Design Discrepancies: nDisplay Viewport in Config Editor - Configuration |
| UE-118325 | UX Design Discrepancies: nDisplay Config Actor - Configuration |
| UE-118668 | nDisplay: Re-Import Not Available on New Imported Assets |
| UE-118320 | UX Design Discrepancies: nDisplay Config Actor - Color Grading |
| UE-118321 | UX Design Discrepancies: nDisplay Config Actor - OCIO |
| UE-118684 | UX Design Issue: nDisplay Color Grading/Post Process Options and Organization |
| UE-118784 | UX Design Issues: nDisplay Content Hidden Properties |
| UE-118834 | Duplicating Post Process volume while in MU and nDisplay crashes nDisplay nodes |
| UE-118374 | nDisplay template needs updating to 4.27 |
| UE-118886 | nDisplay Chromakey Post Process Blur Does Not Work |
| UE-118332 | UX Design Discrepancies: nDisplay ICVFX Camera - Chromakey |
| UE-118776 | nDisplay sometimes is not forcing focus successfully |
| UE-118329 | UX Design Discrepancies: nDisplay ICVFX Camera - In-Camera VFX |
| UE-119078 | Legacy .cfg files can be added to projects despite not being support by nDisplay |
| UE-119208 | It is impossible to override RenderTexture_RenderThread behaviour |
| UE-119310 | Incamera’s miplevels aren’t applied |
| UE-119312 | nDisplay’s Viewport Override aren’t picking up changes |
| UE-118676 | nDisplay / Inner frustum - Tracking marker tile distance corrupt marker texture |
| UE-119521 | nDisplay screen reshape bug with locked aspect ratio |
| UE-119260 | Chromakey marker UX updates |
| UE-119257 | TextureShare duplication |
| UE-119686 | nDisplay nodes crash after light bake, leaving MU session and attempting to rejoin |
| UE-119750 | Regression in White Balance/Color Temperature Toggle in nDisplay |
| UE-119759 | Deleting a cluster item in the nDisplay configuration editor does not clear the item from the details panel, allowing users to edit a deleted item |
| UE-118259 | Non blocking editor crash |
| UE-118989 | Enable Inner Frustum bool on nDisplay Actor Root Component disables OCIO and Light Cards |
| UE-120093 | Chroma Key Tracking Marker Marker color does not update |
| UE-119660 | Chroma Key Tracking Marker Tile Scale Setting is Backward/Inverted |
| UE-119661 | Chroma Key Tracking Marker Tile Distance Setting Scales Content Incorrectly |
| UE-119766 | Manual projection policy regression |
| UE-119321 | nDisplay Manual Projection policy doesn’t work |
| UE-119758 | Undoing an cluster add operation does not work after saving/compiling an nDisplay config |
| UE-118958 | Remote Control Preset - nDisplay OCIO Per-Viewports overrides settings aren’t correctly exposed |
| UE-118885 | Exposing the nDisplay Cluster Root Actor at Top Level not Sufficient when Setting Object Position in Remote Control |
| UE-118480 | Remote Control API - Allow changing Widget Type from WebApp |
| UE-118749 | Remote Control API - Can’t send images through websockets |
| UE-118535 | Remote Control API - Missing preset ID in PresetFieldsChanged |
| UE-118536 | Remote Control API - Register to preset change notification using a PresetID |
| UE-118670 | Remote Control Web Interface not Reliably Responsive |
| UE-118739 | Remote Cotnrol API - WebApp with List has bad performance |
| UE-118398 | RCP asset gets repeatedly corrupted |
| UE-118838 | Web Remote Interface - Web app is not available when it is not rebuilt |
| UE-118866 | Remote Control API - Some thumbnails are not returned with the right headers |
| UE-118422 | Post process should be enabled automatically when touching any PP value in remote control |
| UE-118173 | Web remote control can’t set stage rotation min/max from iPad |
| UE-119362 | Remote Control API - Register to preset change only to loaded presets |
| UE-119367 | Remote Control API - WebApp does not discover newly created presets |
| UE-119418 | Remote Control API - Missing Mini Color Picker option in UE |
| UE-119033 | WebApp Widgets are non-functional in binary build |
| UE-118944 | Web Remote Crashes Editor Box when Driving Slider |
| UE-119662 | Remote Control API - Deleted preset in UE is not removed from list in webapp |
| UE-119486 | Exposing per-viewport color grading properties on second viewport doesn’t work correctly in remote control |
| UE-119218 | Remote Control API - Precision Modal |
| UE-119616 | Remote API - RC and MIDI property initialization |
| UE-119872 | Color Picker Value slider will not move below 10% |
| UE-119868 | Negative values are accepted in the Color Picker precision mode |
| UE-119489 | Remote Control API - Duplicate a preset does not generate a new PresetID |
| UE-118959 | Remote Control plugin causing Mac editors to crash when opening GoldenPath |
| UE-118298 | Remote Control DMX - Default range values are not considering the channel size (16bits) |
| UE-118883 | Adjusting the Slider on a Vector Doesn’t Immediately Transact on Initial Change |
| UE-119555 | Integrate missing blackmagic linux integration |
| UE-119593 | Switchboard doesn’t detect newly created map |
| UE-118612 | GitHub 8154 : Fix OpenXR LocateViews use correct pipeline |
| UE-118610 | GitHub 8152 : Work around out-of-bounds problem with late latch on secondary views |
| UE-118766 | Android Package Command fails with :app:assembleDebug |
| UE-119852 | Quest 2 controller models don’t show up when using the native plugin |
| UE-119668 | Collaborative Viewer - CutPlane Feature is not added To the VR Pawn |
| UE-120047 | OpenXR Remoting fails to attach actions to remoting session in 4.27 |
| UE-120192 | Crash in HPMotionController extension plugin |
| UE-119892 | GitHub 8231 : Arm - Add Mali-G78 device profile |
6 Likes
Yes we used it for a digital twin simulation and worked flawlessly
I’m loving the focus on virtual production and nDisplay in this release. Hopefully we get an Inside Unreal on all the changes!
Would be true but you guys fail to apply bugs fixes to older versions so as a result, I don’t really have much of a choice. It seems that no matter which version I use, it’s going to be unstable. I am just looking for most stable for my project and at the moment, 4.27 preview is that.
3 Likes
Woah! Awesome! Been waiting on gpu lightmaps to be fixed for a very long time!
Confirmed! Finally working! GPULightmass for mobile works!
3 Likes