Unreal Engine Issues

Niagara Grid Location Module spawns particles off center

the GridLocation module spawns particles off center. ...

UWorld::CleanupWorld causes issues with sublevels when changing maps after building lighting

A licensee has reported that UWorld::CleanupWorld is causing issues with assets in Sublevels if you build lighting on the parent level, save all of the maps, and then change to another level. The as ...

Awakening an actor and calling TearOff in the same frame discards the awaken request

When a dormant actor gets reawakened and we call TearOff on it, we could expect the actor to get replicated before being TornOff. When these two changes are done on the same frame, the TearOff nega ...

Lighting not building in sublevels using Resave Packages

Licensee found that running the resavepackage commandlet that sublevels who's lighting was built were not saving the changes. ...

ForceActorRelevantNextUpdate will only force an update on the first connection

The ForceActorRelevantNextUpdate will only trigger an update on the first connection in the list. Note that the ForceActorRelevantNextUpdate does not work on dynamic actors since their ActorChannel ...

Skylight is not Captured in Reflection Probes

Skylight is not Captured in Reflection Probes. Unable to test in 4.20 due to project provided being 4.21 Found in 4.21 CL# 4753647, 4.22 CL# 5660361, and 4.23 CL# 5687320 ...

Animation import with "Force Front X Axis" is broken until a re-import

Dropping a packet containing an initial replication for a Custom Delta Property breaks replication

Custom Delta Property NAK handling is done via Custom Delta Base States. Whenever we replicate a CDP, we have the implementing code return a Custom Delta Base State. However, before a CDP is ever re ...

RPCs do not work in a class with no properties

NetFields are not initialized for classes without properties, preventing RPCs from working. Should just be a matter of removing the PropertyLink check in UClass::SetUpRuntimeReplicationData. See UDN ...

Cannot (Easily) Change the Case of Folder Names in the World Outliner

In the World Outliner, without the following workaround, you cannot simply change the case of a folder name from upper to lower case or vice versa. EXAMPLE: map -> Map = map WORKAROUND: Change "M ...