Restore state on animation in level sequence will stop all montages

UE - Anim - Sequencer - Feb 12, 2020

It looks like UnbindFromSkeletalMeshComponent stops all montages. This is called when the animation section restores its state.  https://udn.unrealengine.com/s/question/0D52L00004lun3ySAA/restore ...

Crash when using both tessellation and virtual texture on a landscape material

UE - LD & Modeling - Terrain - Landscape - Feb 11, 2020

When a landscape is set up to use runtime virtual texturing. If it uses a material that writes to a runtime virtual texture and has tessellation enabled. Then we see a crash and the log reports: ...

Atan2() missing from Math Expression node

UE - Gameplay - Blueprint - Feb 11, 2020

Using the math expression Atan2(y,x) inside of a math expression node results in an error.  Tested in:  4.23.1 CL#9631420 ,  4.25 CL#11341939 ...

Placing 'Groom' asset into scene results in assertion failed

UE - Graphics Features - Feb 10, 2020

Dragging a groom asset into the level results in a crash. Link to Project: [Link Removed] Tested in:  4.25 CL#11223911 ...

Custom Profiles Don't Update Maps To Cook When One Is Deleted

Tools - Feb 10, 2020

If you delete a map while it is marked to be cooked in a custom profile, then run the custom profile the map won't be deleted from the profile .ulps. I wasn't able to launch using the new custom pr ...

Compiling a grandchild Blueprint via automated test can lead to crash

UE - Gameplay - Blueprint Compiler - Feb 10, 2020

The crash doesn't happen if the blueprints are loaded ahead of the test by opening them, or if you compile all of them in the same test run. ...

Light shaft smear color due to TAA bleeding

UE - Graphics Features - Feb 10, 2020

See https://udn.unrealengine.com/questions/553031/volumetric-fog-bug.html?childToView=554676#answer-554676 ...

Particle System Components don't inherit owner's time dilation

UE - Niagara - Feb 7, 2020

This is a regression introduced by the particle system manager. It does not account for the owning actor's time dilation when ticking the particle system components.  ...

HLOD proxy generation invalidates other clusters

UE - World Creation - Worldbuilding Tools - HLOD - Feb 7, 2020

When rebuilding a single HLOD proxy mesh in a world composition level that has many, the other proxy meshes will be marked as unbuilt and removed from the HLOD asset package. ...