Unreal Engine Issues

UE5 Main - Editor crashes when creating a Data Table

Doesn't occur in UE5 Release or UE4.Can't attach logs/crash information I'm encountering an RHI crash within UE5 Main at the moment. This issue seems to be caused by a commit from last year that ...

Child Actor Component outputs error when child class is set to empty using blutility

Child Actor Component outputs error when child class is set to empty using blutility I attached repro proj. ...

Ensures for Pixel and Vertex Shaders occur when running TM-ShaderModels with -onethread

Two ensures fire when opening the TM-ShaderModels Map in QAGame with the -onethread argument. The callstacks look identical with the exception that one is for a pixel shader and the other is for a v ...

Nativized packaging fails when attaching paper Flipbook component to a parent paper Flipbook component that is Inherited.

Nativized packaging fails when attaching paper Flipbook component to a parent paper Flipbook component that is Inherited. ...

Editor crash on BP recompile with custom FRuntimeFloatCurve variable

When a class contains a FRuntimeFloatCurve variable, compiling a blueprint of the class causes the editor to crash once a key has been added to the curve and selected Regression: Yes, the provided ...

Editor crash when a Breakpoint is added to a Widget's Tick function

Editor crashes when a widget's tick contains a breakpoint at a print string node. Based on 4.16 warning message, this appears to be caused by the text attempting to draw when no draw buffer is avai ...

Fbx Importer: Need to clamp incoming vertex color

Derived struct data is not copied to Base struct

The actor Blueprint is intentionally causing an object slice to occur. In other words, we're copying a derived type to a base type, so the expectation is that only the inherited base properties are ...

Morph Target Sets to Zero When Transitioning From 1 to -1 Causing Flickering

-Morph target cycles through all values instead of only alternating between 1 and -1 -Couldn't reproduce in 4.17 -attached a test morph target asset Link to example video from user: [Link Removed] ...

Syncing issue when stopping and blending out a non-looping montage to an anim graph

When syncing from a non-repeating montage that is blending out to an anim graph, the anim montage is marked as a follower due to having its PrevMaker as an AnimBoundary(-1), furthermore in this case ...