Unreal Engine Issues

After adding MovieSceneObjectPropertyTrack from BP or Python, clicking the pull down of the added track occurs crash

When MovieSceneObjectPropertyTrack is added from BP or Python, PropertyClass of UMovieSceneObjectPropertyTrack becomes null, so it crashes with the following processing of SPropertyMenuAssetPicker : ...

Collisions aren't disabled by UPhysicsConstraintComponent in non-blocking streaming levels

When using a constraint to disable collision between the constrained bodies, collisions are not ignored if the constraint is part of a streamed in sub level that does not block on load. This also oc ...

Vive - PIEVR 'Set World To Meters Scale'

UAnimInstance::GetInstanceTransitionTimeElapsed returning 0 in non-editor builds

In non-editor builds UAnimInstance::GetInstanceTransitionTimeElapsed always returns 0.0f. This is caused within FAnimNode_StateMachine::Update_AnyThread due to: #if WITH_EDITORONLY_DATA NewTra ...

Crash when enabling Forward Shading and restarting editor

Crash occurs when enabling Forward Shading and restarting the editor when prompted. The editor continues to crash with every attempt to open after this point as well.  ...

Exporting Camera Anims from Sequencer does not copy over tangents correctly

This appears to be tied to the integer time conversion. Converting in MovieSceneToolHelpers::CopyKeyDataToMoveAxis does not account for frame rate when converting tangents. I tested multiplying the ...

Memory leak with disable rendering

When executing "ShowFlag.Rendering 0", it occur the memory leak because it can't run RHICmdList.ImmediateFlush(). The following code is a workaround. DEC_MEMORY_STAT_BY() is ImmediateFlush. Witho ...

Exported Morph target Animation sequences behaves differently in Max or Maya vs in UE4

After invested, noticed that the exported morph target animation generated two separated Morph Modifier for each individual Morph Target in Max to achieve the final result instead of using only one ...

BuildGraph XML Errors Logged Incorrectly

Suggested fix from licensee: After investigation, it seems that the filename is passed as a string instead of a FileReference in Script.cs:84. Fixing the issue seems to be as simple as changing th ...

Printing a string or character to the device output log does not display the string/character

If you point to a character or text data type and log it into the Device output log, the variable will not appear in the output. However, any other data type will appear. ( float, int, etc.). Found ...