Unreal Engine Issues

In -game in Editor, if streaming-in a LevelInstance and initialize its world partition, then leaving that cell and make it go outside the streaming grid, to re-enter it again, will trigger a check(!StreamingPolicy) if no GC has happened during that time.

This crash can be fixed by adding a couple of || IsRunningGame() like it is done here:    FGenerateStreamingContext Context = FGenerateStreamingContext()        .SetLevelPackagesToGenerate((bIsPIE ...

Dumping of world partitioned HLOD stats fails in commandlet

Dumping of world partitioned HLOD stats in commandlets no longer works since updating to Unreal 5.5. The cause seems to be that the functionality has been moved from UWorldPartitionHLODRuntimeSubsys ...

UEditorEngine::AddPendingLateJoinClient checks original PIE/SIE state, not current state

When adding late joining clients, the engine checks the originally requested EPlaySessionWorldType, rather than checking whether or not the session is currently simulating or not. This means if the ...

Closing a Geometry's Collection Dataflow Editor window when the ChaosVehiclePlugin is enabled is crashing the Unreal Editor when running it with the -stompmalloc flag

As the title describes, closing a Geometry's Collection Dataflow Editor window when the ChaosVehiclePlugin is enabled is crashing the Unreal Editor when it is running with the -stompmalloc flag. The ...

Lyra 5.5 - LAS_ShooterGame_SharedInput has got a missing reference on InputMapping #1

The templated Lyra project for 5.5 is missing a reference to IMC_Default_KBM on /ShooterCore/Experiences/LAS_ShooterGame_SharedInput because it looks like IMC_Default_KBM was renamed to IMC_Default. ...

[Interchange][gltf] Imported animation are all 1 frame long.

All the imported animation only contain one frame. If the file contains in archive are imported in a gltf web viewer we can see animation are playing.  [Link Removed] [Link Removed] https://foru ...

PropertySet : changes in instancedstruct are not detected by the watch

Hi, I tried to use for a scriptable tool the watch property node for a struct. The objective for me was to offer to my user a view of a struct in the scriptable tool and have these modifications b ...

MRQ - Skeletal Mesh motion vector are output only for the last sample of Spatial Sample Count

Skeletal Mesh motion vectors are output only for the last sample of Spatial Sample Count, while Static Mesh motion vectors are output in all samples. UDN: [Link Removed] Slack thread: [Link Remo ...

VRS Stereo Foveation is not working

Steam Sockets cannot create listen socket during non-seamless server travel

This seems to occur because the original listen socket is still around when the instance tries to create the new one, even though it has been marked for deletion. The issue does not occur when FStea ...