Unreal Engine Issues

Editing Blueprint default values will make the level it is contained in get marked as dirty

When Blueprint default values are edited, those edits will also be propagated to any active instances in the level. Each edit event will mark the level as dirty. Similarly, in a World Partition map ...

Distance Field AO for Hair shading model looks incorrect

It will be the same drawing as the Default Lit Material with the same value set to Nomral.[Image Removed] ...

Setting the sequence of a Level Sequence Actor after playing a sequence with an event will crash if played

The editor crashes trying to find an event on the other level sequence when playing back the new one. ...

JobObject appears to break /ZI pdb compiles

It seems that the [Link Removed] UBT creates to ensure any child processes are terminated on close is somehow affecting the mspdbsrv process that cl is spawning and terminating it when cl is finishe ...

Snap Sections to Timeline using Source Timecode is in tick resolution

ServerMapNameOverride applied to "Play Standalone" NetMode instances

For testing connection flow, it can be really useful to have the ability to start standalone instances in one map while the server starts in another. However, since the server map name override is a ...

[AI] FMassBatchedEntityCommand uses wrong scoped access

FMassBatchedEntityCommand uses UE_MT_SCOPED_READ_ACCESS in both of its Add methods but it writes data to its TArray that it is supposed to be protecting. ...

Blueprint spawned by Visual Dataprep does not run construction script

Notice that the actors created through dataprep does not exectute the construction script while the actor spawnd directly in the scene does. Reported in the UDN [Link Removed] ...

Disabling World Partition causes all actors to be removed from level after save & reload

Automotive Materials - ClearCoat Specular Artifact with Saturation ~1

[Link Removed][Link Removed] ...