Unreal Engine Issues

Actor Variable References settable when in type array in Level blueprint

There is an issue with Actor Variable References that become settable when in type array in the Level blueprint. Once in the array, the actor can be successfully addressed, however using the Save Cu ...

Quickly using alt-tab with a blueprint in a new window causes the event graph to capture input of the alt key

Quickly using alt-tab with a blueprint in a new window causes the event graph to capture input of the alt key. This issue does not occur when the blueprint is a tab of the main UE4 editor window. Th ...

Fatal error when pausing and sleeping when using Launch Windows Game

When using the pause command in a launched game and putting the computer to sleep it causes the fatal error "GameThread timed out waiting for RenderThread" when logging back in and resuming work on ...

Increased load times in a packaged project

There appear to be longer load times between 4.16 and 4.17/4.18 when opening a packaged project. Possible regression from 4.16 ...

[CrashReport] UE4Editor_Slate!GatherAllDescendants() [slateapplication.cpp:1400]

This is an infrequent but trending crash coming out of the 4.18 release. Users have not provided any descriptions of their actions when the crash occurred. The last "User Activity" on all crashes r ...

[CrashReport] VRFunhouse crash - UParticleLODLevel::PostLoad()

Set Hardware Cursor doesn't refresh when clicking and holding in PIE when dragging out and back in

The SetHardwareCursor function sometimes doesn't update when clicking and holding the left mouse button on a widget component, like a button, and causes the cursor to default back to its normal icon ...

Certain Materials do not render on Destructible Meshes in Standalone and Packaged projects

Certain Materials do not render on Destructible Meshes in Standalone and Packaged projects. I'm unsure of the exact cause but disabling "Used with Skeletal Mesh" in the materials Details panel, then ...

[CrashReport] UE4Editor_Engine!UModelComponent::CalcBounds() [modelrender.cpp:750]

This is a trending crash coming out of the 4.18 release. Users have not provided any descriptions of their actions when the crash occurred. Source Context 742 FBoxSphereBounds UModelComponent ...

[CrashReport] Fatal Error: Ran out of memory - GenerateInstancedStereoCode() shadercompiler.cpp

This is a trending crash coming out of the 4.18 release. Users have not provided any descriptions of their actions when the crash occurred. Source Context 174 if (GWarn) 175 { ...