Unreal Engine Issues

Crash on 5.7 when running with the Vulkan RHI and async compute

Making this a placeholder for now. Will fill out the description asap ...

Issue with Niagara emitter inheritance

Modules in the particle spawn stage get unlocked and lose inheritance after changing the inherited emitter's interpolated spawn mode to "No Interpolation" then resetting. ...

DoDeferredRender will not UpdateBound correctly when NavigationCachedBoundsUpdated

With InstancedStaticMeshComponent, after calling AddInstance, an instance that’s far away gets culled because of additional logic that was added in 5.7 to This works correctly in 5.6 and the instanc ...

Initialization error when creating FEventReply objects from Python

the handled value passed to unlock_mouse is actually treated as unhandled, because FEventReply has no uproperty and no Identical()function of its own. Adding WithIdenticalViaEquality can fix this is ...

Niagara problem with "Static Mesh Location" module

The bake_transform_with_settings method works in 5.6 but not 5.7

Trying to automate the process of baking transforms via python and the identical code above works in 5.6 but not in 5.7. There are no error messages in the output log. When running in 5.7, it does ...

HLOD generation can run out of space in the FName table

A licensee reported that generating the HLOD for his large WP based level is running out of space in the FName string table.  He tracked the source of the problem to CL 47064601. Upon inspection ...

Duplicating OFPA Levels can result asserts when running the WorldPartitionBuilderCommandlet on multiple levels.

The process will assert in UWorldPartition::Initialize on  check(!OuterWorld->PersistentLevel->bAlreadyMovedActors); The log from a debugging session (see attached image) that a LevelInstance ge ...

Landscape weight-blended layers don't paint exclusively anymore

Groom assets can no longer be created without curves data

It used to be possible to create an empty Groom assets without an Alembic file. However, this is no longer possible because curve data is required This workflow is useful to create grooms that onl ...