Unreal Engine Issues
Unreal Engine Issues
Mobile projects crash with Event Driven Loader disabled
UE - Platform - Mobile - Feb 21, 2019iOS + Android apps will crash on launch if Event Driven Loader is disabled. Confirmed in 4.23 MAIN at CL 5035898 ...
Draw to Render Target Android Regression
UE - Graphics Features - May 15, 2019Regression in Draw Material to Render Target functionality. Enabling Mobile HDR is a workaround. Android tested with Note 4 Unable to verify Main CL 6395234 (Crash on Phone) No repro on iOS mo ...
sRGB flag is enabled when importing hdr image file
UE - Editor - Content Pipeline - Import and Export - Oct 23, 2019The sRGB flag is enabled when importing hdr files. This is disabled in PostEditChangeProperty, but remains enabled if we do not edit the file. I think the sRGB flag should be disabled for hdr image ...
Assets Jitter When Selected In Editor
Tools - Mar 4, 2020When you are selecting an asset in the editor it jitters a little bit until unselected. Found in 4.25.0 Preview 1 CL#11723679 Reproduced in 4.26.0 Main CL#11724764 ...
Global Distance Field Precision Issues Far From Origin
UE - Graphics Features - Jan 26, 2023[Enduring] Appears to be in the visualization rendering of the distance field, distance field shadows were unaffected. There was one instance where the bug did not replicate as expected. This was wh ...
Repackaging the same build produces different order of shader code chunks in IoStore container TOC
UE - Rendering - Architecture - Materials - Apr 24, 2024A licensee reported that packaging the build with same content (it is unclear if they were rebuilding the DDC between the runs, but it shouldn't matter) produces a different placement of code chunks ...
Static lighting crash on 5.4 when using landscape with WPO
UE - Graphics Tools - Terrain - Landscape - May 22, 2024When static lighting is built for a landscape with "Use Material Position Offset in Static Lighting" enabled it causes an editor crash. Licensee mentioned it was likely caused by a commit for 5.4, C ...
Skeleton does not match Full Body IK node debug.
UE - Anim - Rigging - Control Rig - May 13, 2025In a simple setup of the Fullbody IK control rig node, when you turn on the debug draw of the ik solve. The lines and the skeleton do not align. ...
Out-of-Bounds Access During Partial Updates of ISMC Per-Instance Custom Data
UE - Graphics Features - Jan 6, 2026When using instance custom data values, removing an instance and changing the number of custom data floats in sequence can cause an array-out-of-bounds crash. The underlying arrays are not resized ...
Crash in blueprints when opening right-click menu
UE - Gameplay - Blueprint - Apr 22, 2015Right clicking inside the event graph of a blueprint that is derived from PhysicsCollisionHandler will crash the editor CrashReporter: [Link Removed] ...