5.7.3 Hotfix Released

Hotfix 5.7.3 is hot off the press with 45+ fixes and updates!

Please feel free to share feedback and discuss the current version in the release topic, Unreal Engine 5.7 Released.

If you experience a bug with the 5.7.3 Hotfix, please follow the How to Report a Bug guide to report it on the Bug Submission Form .

Notes to consider: Beginning with UE 5.7, Linux will transition from SDL2 to SDL3. Users with customizations to SDL2 code who are interested in switching to UE 5.7 should be aware that they will need to rework those changes for SDL3.

Issue Summary
UE-337072 [CrashReport][Assert] RenderCore!EmitNullShaderParameterFatalError() [ShaderParameterStruct.cpp]
UE-361799 Chaos Cloth Asset - Wrong vertex colors imported from the StaticMeshImport node.
UE-361711 Visibility and Arrange modifier conflicts
UE-361535 Int Overflow in MRQ with 16k Renders
UE-361497 Performance issue with Pixotope project related to Auto-Size modifier
UE-361420 Crash on engine shutdown when scene state editor opened
UE-361323 Media IO - Media Capture takes multiple frames to start outputting
UE-361229 Rundown refresh assinging ‘none’ values to the remote control entities causing data loss and incorrect visual
UE-361139 Line shaped artifacts when Lumen and/or MegaLights are enabled
UE-361051 Groom - Dwarf Animation hair popping issue
UE-361002 Editor crashes after entering Text value for Level Sequence Event Track payload
UE-360961 [CrashReport][Assert] UnrealEditor-Core!FDebug::CheckVerifyFailedImpl2(char const *,char const *,int,wchar_t const *,…) [Engine/Source/Runtime/Core/Private/Misc/AssertionMacros.cpp:745]
UE-360920 MediaProfile media capture crash on PIE
UE-360873 NDI Media - Timecode synchronization doesn’t work
UE-360792 Masked Text in 5.7.2 Using Bevel Color After Changing Text RC Value
UE-360708 [CrashReport][Assert] MovieSceneTools!class UObject () [KeyPropertyParams.h]
UE-360641 PathTracer: two-sided foliage transmission is broken when using substrate
UE-360627 Crash when spawning actors in blueprint or scene state and attaching them to an actor with Translucent Priority Modifier
UE-360563 Chaos Cloth - Wrong capsule orientation in collisions with the environment.
UE-360417 [SwitchBoard] Unable to add nDisplayTest device
UE-360053 Remote Controlled Logos and Cloner Materials don’t Consistently Apply Before Rendering to MRQ
UE-359861 Material Designer default constructed materials exceed texture sampler count in Mac, causing material to fail compilation
UE-359856 Text3D Incorrectly Rendering Certain Glyphs
UE-359652 Morph Targets are unable to return to 0.0
UE-359447 NDI - Frame Rate Property Does Not Appear in Media Profile
UE-359321 Vulnerability in Remote Control Plugin - Missing Access Checks
UE-358864 Chaos performance regression in UE5.7 than UE5.6 because the solver iteration count changed to -1
UE-358652 Composure - Resolution Incorrectly Shows 1920x1080 After Clicking Off Layer
UE-358651 Media Profile - Media Source Stops Playing After Exiting PIE
UE-358649 [CrashReport][Assert] PCG!UPCGLandscapeSplineData::GetTransformAtDistance() [PCGLandscapeSplineData.cpp]
UE-358636 [CrashReport][Crash] ControlRigEditor!FControlRigEditorModule::BakeToControlRig() [ControlRigEditorModule.cpp]
UE-358440 Rundown bug where scenes from different channels unexpectedly affect each other
UE-358424 [PCG] Fix crash in VT data interface when initializing RT resources on the game thread
UE-357937 Disabled Skeletal Mesh Sections cause Shadow Ray Tracing Flicker
UE-357764 Quick Render - Incorrect Perspective When Camera is Parented
UE-357747 [CrashReport][Assert] MetalRHI!ConvertSurfaceDataToFColor() [MetalRenderTarget.cpp]
UE-357406 NDI Media - Just in Time Rendering option creates color artifacts when enabled
UE-357261 GitHub 14138 : VulkanRHI Fix R16_SFLOAT color conversion to FLinearColor
UE-356717 Morph target is not applied on the first frame in Level Sequence
UE-355697 Cloth Asset - Invalid LOD0 error when creating a sim only Cloth Asset.
UE-354106 [CrashReport][Crash] Engine!USkeletalMeshComponent::AddClothingBounds() [SkeletalMeshComponentPhysics.cpp]
UE-352950 Animation Constraint Jitter in Sequence when Constraining Layered Control Rig node
UE-350732 Switchboard - syncstatus does not respect “Engine Sync Method” set to “Use Existing”
UE-341569 [CrashReport][Assert] D3D12RHI!FD3D12DynamicRHI::HandleFailedD3D12Result() [D3D12Util.cpp]
UE-313616 [CrashReport][Assert] SkeletalMeshUtilitiesCommon!static void BuildMorphTargetsInternal() [LODUtilities.cpp]
UE-297615 XR - Editor Crashes when beginning a VRPreview with NetMode set to Client
UE-295331 [CrashReport][Crash] RHI!UE::RHI::GPUProfiler::FGPUProfilerSink_StatSystem::FQueueState::EndBreadcrumb() [GPUProfiler.cpp]