Unreal Engine Issues
Unreal Engine Issues
Inherited component properties on actor instances of derived blueprints are silently reset to defaults when the blueprint enters a compile error state and is subsequently fixed
UE - Framework - Blueprint Compiler - Mar 6, 2026When an instance of a child blueprint in a level enters the “Bad Blueprint” state due to a compile error it will reset to default values when it is restored after the compile error has been fixed. ...
Crash While Running Project With d3ddebug Enabled (fix provided)
UE - Graphics Features - Mar 6, 2017A licensee encountered a crash during InjectTranslucentLightArray: according to them they fixed the issue in ShadowProjectionCommon.usf: /** Cube map texture. */ TextureCube<float> ShadowDepthCub ...
UE4.11.1 Crashes After loading the Substance Plugin
UE - Foundation - Core - Apr 13, 2016Regression: UE4.11.1 Crashes After loading the Substance Plugin. This did not Occur in previous versions of the Engine. Reported on Macs and PCs Full Error Message: Fatal error: [Link Removed] [Lin ...
Enabling Fixed Frame Rate doesn't Lock the Frame Rate
UE - Rendering - Architecture - RHI - Nov 19, 2019When a project is set to use a fixed frame rate via the Project Settings it is uncapped when played in editor. Found in 4.24 Preview 2 CL#10091930 Reproduced in 4.25 Main CL#10298106 ...
Using a fixed frame rate will cause you to leave the loop section of Montage.
UE - Anim - Runtime - Dec 10, 2021This problem only occurs when the fixed frame rate is 30 and the Sequence Lenngth of the loop animation is 1.66667. If turn off the fixed frame rate setting, it will behave as it should. ...
Renamed controls creating duplicate curves in sequencer that once fixed up cause selection issues.
UE - Anim - Rigging - Control Rig - Mar 25, 2026When a control is renamed after it has already been animated in a sequence, the control curve name map needs to be fixed up. Once it is fixed, selecting the control in the world will not map the sel ...
Integrate VirtualBones crash fix into next release patch
OLD - Anim - Jun 7, 2017Athomas reached out to me with a crash he was having when trying his 'Automatic Sync Marker AnimModifier' on a Skeleton that had Virtual Bones. It was verified that this only happens when Virtual B ...
Fix BinkMediaTextureResource command list crash on UE 5.6
RAD - May 23, 2025Bink MediaTextureResource assets cause a graphics API crash, due to a missing UAV flag. The Licensee has proposed a fix to add the TexCreate_UAV flag. ...
Crash occurs when an element of a fixed-size FText array is edited in a Blueprint.
UE - Gameplay - Blueprint - Jan 23, 2017The Editor can crash if a fixed-size FText array is created. Attempting to edit one of the values of the array in a Blueprint will result in a crash. ...
Changes to AActor::SetReplicates caused Role/RemoteRole replication fix to regress
UE - Networking - Jul 14, 2022There was a recent bug report that matched the description of some older cases (see linked UDN). The issue raised in those cases, [Link Removed], had been fixed, but the recent question seemed to in ...