Unreal Engine Issues

Investigate/Fix incremental component unregister

Streaming a level back in before it finishes streaming out behaves undesirably. When a level is streamed out the actors/components in the level are incrementally unregistered over multiple frames. ...

Fix primitive uniform buffer validation.

GPUScene primitive validation is currently busted and asserts. It looks like there are two problems: 1) NaN's in the entries can cause comparison issues, so a MemCmp would be better. 2) There's a ...

Fix TSR velocity extrusion on rotating

MPCook: Fix replication of UObject::CookAdditionalFilesOverride

MPCook relies on global data that is accumulated during package cooks on CookWorkers be replicated to the CookDirector. Some global data that is accumulated during package cooks is CookAdditionalFi ...

FixDeps runs on every build even without any changes

This has been fixed for 4.15, but 4.14 was branched before the fix. Note that this issue is distinct from [Link Removed] and the fix is much simpler. Note that [Link Removed] (pull request #2839) ...

Multiple Materials not assigned to Mesh on Import

Not all material elements are created and assigned to the static mesh using multiple materials. With the attached mesh, only the first element is created and the other two are left non-existent. I c ...

Fix SourceLength to be tangent to spot light axis

Editor delay on end simulation in 4.14

When stopping PIE Selected Viewport or Simulate Mode there is now a 1 to 2 second delay that did not occur in previous versions of the Engine. Regression: Did not occur in UE4.13 or earlier ...

Fix pause flags when recycling sound sources

Issue is due to pause flags getting recycled when new sound sources are used from the sound source pool. This is a regression since 4.13, causing audio to pop. ...

Fix rotations when exporting a blueprint with a camera component