Unreal Engine Issues

Sequencer particle toggle tracks evaluate one extra frame

It looks like particle toggle tracks use TimeRangeToNumberRange which gives the incorrect range as a result of CL 10893518 which fixed [Link Removed]. ...

Array property of a User Defined Struct is corrupted when additional properties are added to the struct

Modifying a UserDefinedStruct can lead to data corruption in Blueprint array properties. ...

Crash when converting SK to SM when sk comp have bRenderStatic

Crash when copy and paste actor track what is spawnable and has event track.

This issue is regression. It crash only 4.25, and it dosen't crash in 4.24. Copy and past a specific track (spawnable, actor with event track, set endpoint) causes a crash in the editor.  ...

Ensure condition failed : SkeletalMeshLocation module on scaled SkeletalMesh

The message in ensure is below LogOutputDevice: Error: === Handled ensure: === LogOutputDevice: Error: Ensure condition failed: (FMath::Abs(1.f - M.GetScaledAxis(EAxis::X).SizeSquared()) <= (1.e-4 ...

Blueprint Properties retain meta data through a type change

Instead of clearing the metadata we should enable editing the metadata for vectors since the details panel supports it already.  ...

Local space particle with SkeletalMeshLocation on scaled mesh is doubly scaled

MeshCurrSamplingBonesBuffer already has scaled bone transforms, but these scales have not been cancelled out when using local space. ...

Interfaces implemented and then removed from a parent BP still show a phantom reference from child BPs until they are recompiled and saved

See repro steps. The phantom references can be fixed by recompiling the child BP and saving it. Note that just loading ChildBP2 does not fix/remove the reference during compile-on-load, so it's a ...

Rich Text Block automatic line wrapping doesn't work properly with image decorators

Rich text blocks don't seem to factor in the size of their embedded images properly when choosing where to wrap with autowrap enabled. ...

Memory leak in Test build when moving ISM with UpdateInstanceTransform

This leak occurs in Test builds, but not in Development builds. Updating InstancedStaticMesh with UpdateInstancedTransform every frame causes a memory leak. This screenshot was taken using Mempr ...