Unreal Engine Issues

Editor Crashes When a Component and Actor Implement Two Interfaces

The editor crashes if you implement two blueprint interfaces in an actor blueprint, and then an actor component blueprint. These interfaces must have at least one function that returns a value. The ...

[Crash] UE4Editor-MetalRHI.dylib!ReportMetalCommandBufferFailure()

Crashes when resizing Standalone game window by dragging lower right corner to and fro to increase/decrease window size. [Link Removed] Error message: SEGV_MAPERR at 0x3 Source Context:none Mos ...

GPU specific issue with Lighting while moving - GTX 770

While testing GPU - ContentExamples - Lighting - Nvidia gtx 770 in the 4.16 GPU Compat Pass, I noticed a strange effect on lights while the player is in motion. I've had multiple people attempt to ...

OnMovieClipFinished returns the incorrect movie name

When OnMovieClipFinished is called, it will return the name of the movie clip that is about to be played rather than the clip that had just finished. Regression: Yes This did not occur in 4.15.3 B ...

Disabling Occlusion Culling and DBuffer Decals causers crash

THere is a crash that occurs when opening a project after the Occlusion Culling and DBuffer decals option are unchecked. There are times where the Unreal Crash reporter catches the crash and display ...

"+Create Binding" added to a "Text Block" makes the Text not visible in Standalone Game

The visibility of the Text depends on the "+Create Binding" being added or not added. Now, If we go into our Widget Blueprint Designer > over in the Details panel under Content > Select "Bind" and ' ...

Vertex Colors distort after merge actors is used

When using the merge actor tools with Vertex colors painted on, the resulting mesh will have those colors distorted. This issue occurs only with the resulting static mesh. This issue is a regression ...

Cameras rotate incorrectly in Sequencer when using Key All and Auto-Key options

Sequencer is having issues handling a camera rotation going past -180 or 180 degrees with multiple keyframes when Key All and Auto-Key options are enabled. This results in unwanted 180 degree flip w ...

Post Process Volume not updating in preview

Wrong IDE loads when Visual Studio 2019 is selected

Visual Studio 2019 does not load even when it is selected as the chosen IDE. Instead the editor loads Visual Studio 2017. If you create a new C++ class after switching the IDE and restarting the Edi ...