UPDATE!
"We have just released Preview 3 for 4.22! Thank you for your continued help in testing the 4.22 build before its official release. As a reminder, the Preview builds are for testing only, and should not be used for active development of your project.
For a list of known issues affecting this latest preview, please follow the links provided on the original post in this thread."
Fixed in Preview 3
Fixed! UE-68048 GitHub 5428 : Steam Audio Fixes
Fixed! UE-69882 Non-Spatializied Audio isn’t playing in all channels
Fixed! UE-67502 Source Bus: Bypass Volume Scale for Priority and Priority Settings are Placed Under Concurrency Heading but is Unrelated to Concurrency Settings
Fixed! UE-62927 GitHub 4994 : Fix: Stopping FMixerSource can be paused
Fixed! UE-69896 Infinitely waiting for Audio Thread - Log spam when launching QAGame in Standalone Game
Fixed! UE-70484 Editor fails to compile while building UHT - Exec format error - libUnrealHeaderTool-Core.so
Fixed! UE-70079 Datasmith - StaticMeshes lose their material after reimport
Fixed! UE-69680 DS Data Prep - Crash when re-importing mesh
Fixed! UE-70303 Skipped assets during Datasmith Reimport
Fixed! UE-70295 Datasmith Materials no longer Reimport correctly - Datasmith > Reimport Material
Fixed! UE-70297 Datasmith Materials no longer Reimport correctly - Asset > Reimport <Asset>
Fixed! UE-70182 Reimporting actor within Datasmith Root scene breaks Datasmith Actor-Material Connection
Fixed! UE-70426 Datasmith CAD stops reimporting after second iteration
Fixed! UE-70318 Datasmith import takes more memory than 4.21
Fixed! UE-70036 Exported LOD with Datasmith SDK gives strange result at import
Fixed! UE-69425 DS Data Prep - All but one SceneActor erased on execution
Fixed! UE-69254 DS Data Prep - Remove operation improvements - hierarchy modification not reflected
Fixed! UE-70420 Cannot save asset with label containing special character
Fixed! UE-70371 Launch On relinks every time
Fixed! UE-70310 VirtualCamera adds duplicate camera actor in TakeRecorder
Fixed! UE-65226 MeshEditing - Materials are reassigned wrongly on reimport after undo deleting all polygons using the same material
Fixed! UE-70263 VirtualProduction Root Actor doesn’t return correct target camera
Fixed! UE-70256 DS Data Prep : missing operators
Fixed! UE-70301 DS Data Prep : Set Generate Lightmap UVs does not work on Actors
Fixed! UE-70254 DS Data Prep - CAD hierarchy flatten on dataprep import
Fixed! UE-70105 Crash on Rhino model
Fixed! UE-70391 Crash in UVPCustomUIHandler::Uninit() on shutdown, preventing Launch from working
Fixed! UE-69912 Crash in Debug Camera (patch provided in comment !)
Fixed! UE-69915 GitHub 5544 : Add GetDisableSplitscreenOverride to viewport
Fixed! UE-69969 Crash when opening TM-Nat_UMG map that was packaged with inclusive nativization
Fixed! UE-70311 FEQSParametrizedQueryExecutionRequest logging a erroneous warning
Fixed! UE-70091 Changing the Default Value of BP Struct does not propagate change to existing Blueprint Variables
Fixed! UE-70027 Packaging for HTML with Inclusive Nativization enabled fails
Fixed! UE-61501 No useful tooltip info for Mid node
Fixed! UE-70478 WebM lib requires /LTCG switch on Windows
Fixed! UE-70184 Ensure occurs the first time watching a replay using demoplay command
Fixed! UE-70185 Multiple warnings and errors generated when using demoplay command in ShooterGame
Fixed! UE-70187 ShooterGame: Editor crash when PIEing and attempting to play a replay through console command blueprint referencing Map.h:476
Fixed! UE-70183 Multiple ‘Failed to find/spawn actor’ warnings when scrubbing replay in ShooterGame
Fixed! UE-70496 Linux clients with -nullrhi do not call UpdateLevelStreaming
Fixed! UE-67931 Engine\Build\IOS includes an expired certificate
Fixed! UE-67529 TVOS - Packaging CPP project fails when “Support Bitcode in Shipping” enabled
Fixed! UE-70386 Google Pixel devices play an abbreviated startup movie
Fixed! UE-70359 DeploymentServerLauncher crash when opening or closing the editor
Fixed! UE-70387 [Match 3] Continuous popping static noise can be heard during gameplay on some Android devices
Fixed! UE-70101 Initial Startup Movie playback stutters on Android
Fixed! UE-69714 Mac installed build fails on step 5/9, Microsoft.Common.targets: error : Command StopDeploymentServer.bat
Fixed! UE-69711 WebTexture asset errors when packaging for Windows (fallout from UE-61554)
Fixed! UE-69257 iOS Device Output Log doesn’t connect to attached device on Mac
Fixed! UE-69179 DeploymentServerLauncher crash (various repros)
Fixed! UE-69183 iOS Device Output Log doesn’t recover previously disconnected device
Fixed! UE-68966 HTML5 physics objects bounce unexpectedly once disturbed
Fixed! UE-70498 iOS device querying does not work
Fixed! UE-66931 Landscape is Disappearing with Vulkan Enabled
Fixed! UE-68470 Crash w/ Assert Failed when launching PIE VR Preview - Direct3DDevice Error w/ E_INVALIDARG
Fixed! UE-70323 Crash opening a level sequence
Fixed! UE-70300 Velocity vectors incorrect for moving meshes which have MarkRenderStateDirty() called on them every frame
Fixed! UE-69831 Mesh jitter when moving in editor
Fixed! UE-69077 Crash When Material is Set to Deferred Decal with Emissive Decal Blend Mode and Forward Shading Enabled
Fixed! UE-66920 Massive Artifacts and screen flickering when adding DebugCreatePlayers
Fixed! UE-63739 Cubemaps not Reflecting with -vulkan in PIE after changing Reflection Capture Resolution
Fixed! UE-69220 Reimplement view mode overrides for WPO materials
Fixed! UE-70334 Sequence MPC SetVectorParameterValue crash when stopping and starting PIE
Fixed! UE-68624 GitHub 5469 : Ansel plugin updates
Fixed! UE-70523 GitHub 5573 : 4.22 ansel51 - missing pieces
Fixed! UE-69742 Some Houdini Modules are failing to compile
Fixed! UE-69372 Niagara runtime feature level checks are not consistent
Fixed! UE-69005 Editor Crashes when PIE with Vulkan Mobile Preview
Fixed! UE-70349 Starting editor with Raytracing crashes with assert: Id.bValid && !Id.bOneFrameId
Fixed! UE-70312 Integrate DX11 RHI Thread to 4.22
Fixed! UE-70041 Crash stopping sequence on IOS
Fixed! UE-69079 One-Off crash in Raytracing World Normals viewmode: Unhandled Exception: 0x0000087a
Fixed! UE-70180 Values are doubling when setting new keys in Sequencer tracks
Fixed! UE-68959 Gameplay windows from Standalone do not remember their positions properly when there are multiple windows
Fixed! UE-66851 4.21 PIE Issues in High DPI
Fixed! UE-69805 Collections folder shows up when creating new blank project
Fixed! UE-63123 Static HISM gets corrupted lightmap after building lighting if using Lighting Scenario
Fixed! UE-69679 Data Table Reimport - No popup to specify source file
Fixed! UE-70441 Reimport of skeletal mesh LOD > 1 will be reduce if LOD 1 is generated
Fixed! UE-69730 Exporting Then Reimporting a Landscape Layer Weightmap as an .r8 will fail
Fixed! UE-69790 Crash when interacting with newly created landscape, LODData->LodBias == SceneProxy->GetShaderLODBias() [File:/LandscapeRender.cpp] [Line: 3452]
Fixed! UE-69629 Crash sculpting on Landscape Streaming Proxy
Fixed! UE-69466 [CrashReport] UE4Editor-Landscape!FLandscapeComponentSceneProxy::BuildDynamicMeshElement
Fixed! UE-69217 LOD setting from World Composition do not work as expected. LOD distance seems not applied and last LOD is not remaining from far distance.
Fixed! UE-70196 GitHub 5564 : Fixed crash while building grass in editor
Fixed! UE-70296 Cannot gather engine sources in out-of-tree projects
Fixed! UE-69606 Simple collisions are regenerated each time the mesh editing tool is used
Fixed! UE-70331 Multi-User Editing Settings VRAvatar class is missing a space
Fixed! UE-70320 Update MultiUser icons for 4.22 Release
Fixed! UE-69836 [CrashReport] UE4Editor-CoreUObject!UObject::Rename(wchar_t const *,UObject *,unsigned int) [Obj.cpp:200]
Fixed! UE-70438 Double click behavior of Editor Widgets is inconsistent
Fixed! UE-70281 UMG Widgets duplicating UMG buttons
Fixed! UE-70244 Crash in FVPUtilitiesEditorModule::ShutdownModule() in Debug|Editor config on editor shutdown/exit
Fixed! UE-68508 Oculus 1.31 - VR Preview mirror window is pǝddᴉlɟ
Fixed! UE-62761 Warning: MessageBox: No Vulkan entry points found! opening project on MagicLeap
Fixed! UE-70193 Mobile Multi-View is rendering the same view for both eyes
Fixed! UE-70219 Editor Requires Android SDK to Package for Lumin Platforms
Fixed! UE-70306 Error building QAGame for Magic Leap
Fixed! UE-70084 Magic Leap blueprint Functions/Enums fail to load properly when reopening a project
Fixed! UE-69932 Ensure condition failed: VRSystem && VRCompositor after shutting down SteamVR while still in Editor
Fixed! UE-69562 Shadows on instanced meshes are incorrect when ISR is enabled
Fixed! UE-69123 Lumin media project crashes on device with assertion failed: Pair != nullptr
Fixed! UE-69112 [CrashReport] UE4Editor-SteamVR!FSteamVRHMD::UpdatePoses() [SteamVRHMD.cpp:672]
Fixed! UE-68991 Ensure ‘CachedShader == PixelShader->Resource’ when launching onto HMD for the first time in Editor
Fixed! UE-66792 Simple HMD VR preview left eye color issue
Fixed! UE-60968 MagicLeap Install_ProjectName.command unable to run due to invalid permissions
Fixed! UE-70308 Magic Leap crash on device: FVulkanDescriptorSetWriter::WriteBuffer
Fixed! UE-69922 Rendertarget Swapchain spam when launching VR Preview or VRMode to the Oculus Rift HMD
Fixed! UE-69769 Send Console commands on tvOS
Fixed! UE-70309 Disk size taken by Linux Unreal Editor regressed significantly
REMEMBER: Please report any new bugs you find by following the How To Report a Bug Guide