Unreal Engine Issues

Crash when opening a blueprint that implements an interface that has been deleted

UBT crashes when doing an incremental build

There is a consistent crash when incrementally compiling headers containing generated code. The code for launching UHT accesses a property which is null when compiling with the UBT makefile. ...

Audio volume values get reset

Also confirmed in 4.22 Main @ CL 4413632 ...

Compilation manager inhibit construction script to get other actor reference on the level when running construction script right after actor compile.

Construction script execution following blueprint compile gets invalid actor reference if Blueprint compilation manager is enabled. For example, in the attached project, Right after blueprint compi ...

Make Dialogue Context node no longer has the speaker and targets options exposed

The Make struct node for Make Dialogue Context no longer has the "Speaker" and "Targets" pin exposed. ...

Physics Substepping doesn't have the same effect from 4.15 to 4.16

Physics Substepping doesn't have the same effect from 4.15 to 4.16. In 4.16+ the ponytail in the provided project will have a jitter effect even with substepping enabled. This is a regression: Work ...

Spot lights do not cast shadows correctly in forward rendering when dynamic

Doesn't occur for point lights only spot lights ...

Distortion Displacement Track is empty in new level sequence using a distortion file with a framerate of 0

Distortion Displacement Track is empty in a new level sequence using a distortion file witha framerate of 0. ...

Materials get switched up while building HLODs in case the section order is different than the material order

Cinematic viewport transform controls remain after switching back to the default viewport

Cinematic viewport transform controls remain after switching back to the default viewport. ...