Unreal Engine Issues

Mesh Paint Mode Hotkeys Invalid

In the Mesh Paint Mode in UE 5.1, the keyboard shortcuts to change the brush (size, falloff, etc) are not working. ...

Unable to save level while an instance is being used

Level Sequences in Level Instances

Workaround is to specify Binding Overrides on the LevelSequenceActor through its Details panel as such (while editing the LI). ...

Hitting check when removing HISM instances with Custom Instance Data

Hitting check(UploadInfo.InstanceCustomDataCount * InstanceCount == UploadInfo.InstanceCustomData.Num()) and also seeing incorrect isntance order after removing instances from HISMs. Additionally ...

Memory Leak caused by auto save files

Dirty Actors in WP lose their actor folder in the outliner (and cause warnings) on PIE

From Licensee: You can reproduce this in stock by doing the following:Make a new 5.1 project with a new WP map (it can be empty)Put some actors in some folders in the outliner and save them/reload ...

[AI] Destroying an actor while using pooled actors with MassActorSpawnerSubsystem causes a nullptr exception crash

If an actor that is used in the pooled actor list of UMassActorSpawnerSubsystem is destroyed, it causes a nullptr exception in UMassActorSpawnerSubsystem::SpawnOrRetrieveFromPool. The subsystem atte ...

Instigator is not set properly in Lyra health change callbacks

LyraHealthComponent has an OnHealthChanged callback that is executed whenever a character takes damage. One of the parameters is Instigator, but that is never set properly in the current version of ...

Crash when Copy/Pasting from Older UE Versions

When copy/pasting scene objects from older Unreal versions into Unreal 5.1, the editor will crash. ...

Raytraced translucency makes ExpHeightFog black

Does not occur in path tracing nor rasterized translucency. ...