Unreal Engine Issues

FixupRedirects commandlet does not auto-commit deletions

See this UDN: https://udn.unrealengine.com/questions/297811/fixupredirects-commandlet-submitting-marked-for-de.html The fix looks straightforward, just a one-line change but could benefit from tes ...

GC Clustering broken for USoundWave assets (crash)

Assert crashes Editor in the GC system during packaging due to USoundWave assets not being configured for GC clustering. Disabling GC clustering in project settings is a workaround, but the fix is ...

Resizing an Editor window on a Mac by dragging the edge of the window results in the edge being dragged bouncing back and forth as it is adjusted

When dragging the edge of an Editor window to resize the window on a Mac, the edge that is being dragged will bounce back and forth as the mouse moves to resize it. This was less noticeable in 4.17, ...

Engine Scalability Foliage Quality not being applied automatically

Engine Scalability Settings for Foliage Quality are not applied to foliage meshes automatically. Found in 4.17.2 CL 3658906, 4.18.1 CL 3754814, and 4.19 Main ...

Crash when setting Anim to "None" with URO

A Crash can occur when setting a skeletal mesh's animation instance to None when it has Update Rate Optimizations enabled. An unverified proposed fix for this is to remove the nullptr check when ...

Materials with transparency still visible in alpha with holdout in Render layers.

The Transparent materials like the Glass don't behave correctly in Raster (in PT is working as expected).  They are visible in Alpha with Holdout.  This is an Engine limitation for now. But we sho ...

Using blueprint debug step into BlueprintInterface function, occur crash.

If StepIn is performed on a module for which the Interface function is not defined, a crash will occur. ...

HLOD crash when dragging and dropping actors into their own cluster in the HLOD outliner - ALODActor

Enabling Anisotropic BRDF causes crash upon Editor restart

Enabling the Anisotropic BRDF (beta) causes crash upon restarting the Editor. This was reported and tested in 4.25 Preview 2 (CL-12055273). This was reproduced in main 4.26 (CL-12161634). ...

Warp Utils plugin crashes on Editor restart

Enabling the Warp Utils plugin and restarting the Editor causes it to crash. This is a regression from 4.24.3 (CL-11590370). This was reported and tested in 4.25 Preview 2 (CL-12055273) and reprodu ...