Unreal Engine Issues
Unreal Engine Issues
Bitfield enums don't cast correctly in Blueprints
UE - Gameplay - Blueprint Compiler - Jan 22, 2025The licensee already investigated this a little. The problem appears to be that UKismetNodeHelperLibrary::GetValidValue should be calling IsValidEnumValueOrBitfield as opposed to IsValidEnumValue. ...
When importing static mesh using interchange and collision is generated, the asset does not have Collision Generated set to true
UE - Editor - Content Pipeline - Import and Export - May 19, 2025Context: The Interchange Framework is Unreal Engine's import and export framework. When importing a mesh without collision, collision can be auto-generated. Problem: The problem is when importing s ...
Water tiles flicker in and out of visibility with instanced stereo enabled.
UE - Graphics Features - Jun 16, 2025Water tiles flicker in and out of visibility when playing in VR with instanced stereo enabled. Requires instanced stereo rendering to be enabled (does not require forward shading to be enabled) Must ...
Actors re-scale to original size when attached to other actors
UE - Gameplay - Nov 21, 2014Actors rescale to their original size when placed in level then attached to another actor. ...
If PIE is paused using the 'Pause key', the Pause or Resume buttons on the toolbar will no longer start PIE
Tools - Feb 5, 2015If PIE is paused using the 'Pause key', the Pause or Resume buttons on the toolbar will no longer start PIE. You have to make sure that the icon is toggled to Pause, select the viewport, and then p ...
Switch on custom enum causes compilation errors after Hot Reload
UE - Foundation - Core - Sep 28, 2015If the project is hot reloaded while a Switch on Enum is inside of a blueprint which is switching on a custom enum, the switch will become corrupted. It changes the 'selection' pin to take a Byte pa ...
'Desktop User' is unable to see the laser pointer pointed by 'VR User'.
UE - Editor - Content Pipeline - Datasmith - Importer - Dec 19, 2018Host is unable to see lasers of clients. ...
Duplicating blueprint instances in a level with added components causes instance to lose component hierarchy
UE - Gameplay - Components - Jan 28, 2019Duplicating Blueprint Actor instances in a level with added Actor components causes instance to lose component hierarchy. ...
Commandlet Exits With Code -1073741819 and Exception FPlatformMisc::RequestExitWithStatus(1, 3, WindowsPlatformCrashContext.EngineUnhandledExceptionFilter)Engine exit requested (reason: Win RequestExit; note: exit was already requested)
UE - Foundation - Apr 9, 2025When a commandlet is run it successfully completes but does not terminate the engine correctly. It appears that multiple requests are made to terminate the engine process these subsequent engine ter ...
Physical materials cannot be queried
UE - Rendering Architecture - Materials - Feb 12, 2015Physical materials placed on starter content shapes always return as invalid for any trace or collision query. ...