Unreal Engine Issues

VisionOS deferred renderer regression

Deferred desktop renderer does not function correctly on visionOS.  It did work in 5.4.  One problem is the r.XRMSAAMode setting forcing 4 samples even when not using msaa, but there are other probl ...

Partially loaded level instance becomes fully loaded after editing nested level instance

Affect Indirect Lighting While Hidden can affect the environment after data layer unload in editor

After setting Affects Indirect Lighting While Hidden but before saving the level, the emissive contribution persistents through datalayer visibility toggles. This does not appear to occur in PIE, on ...

PoseSearchDatabase indexing doesn't account for sequences "Rate Scale"

During SIE (simulate) and ejected-PIE, modifying a map actor causes triggers RerunConstructionScript() which discards all runtime modifications to SCS components

When Simulating, or Playing-In-Editor and ejected, modifying an actor in the editor world causes the SIE/PIE runtime actor to recreate its blueprint added components via AActor::RerunConstructionScr ...

Incremental GC vs Loading Screens deadlock

A licensee is reporting that using a loading screen with the incremental garbage collector can result in a dead lock when a loading screen is displayed. The licensee found out that:  -------------- ...

MVVM: Bindings set to Tick aren't executed every frame

Server only network emulation settings applied to client on travel

It looks like the "Server Only" emulation settings are being applied to the client after a travel. When doing a server travel with the TRAVEL_Relative travel type, the NextURL created in AGameModeBa ...

FDateRange cannot be declared as UPROPERTY

Unlike other range wrapper structs, such as FFloatRange, marking a FDateRange as a UPROPERTY results in the following error: error : Unable to find 'class', 'delegate', 'enum', or 'struct' with nam ...

EditorOnlyReferences on actor descriptions are not properly computed/can include non editor only references

From licensee:"[...] the issue is that ActorsReferencesUtils::GetActorReferences (/FArchiveGatherExternalActorRefs) will only analyze a reference to an object (/actor) once, if it's editor only the ...