Unreal Engine Issues
Unreal Engine Issues
FFT corruption in bloom from sampling outside of viewport
UE - Rendering - Features - May 27, 2021Licensee has suggested a fix: "Switching to >= resolves the problem: in GPUFastFourierTransform2DCore.ush, `bool InWindow = ...` at lines 127, 144, 170, and 185." ...
Splitscreen View2 influences translucency in view 1
UE - Rendering - Features - Sep 2, 2021The videos + screenshots in the zip file show the issue on the modified gun sight. The licensee has provided a suggested fix here -[Link Removed] ...
Custom data update crash - invalid memory when removing an instance from a UHierarchicalInstancedStaticMeshComponent
UE - Engine Scaling - Streaming - HLOD - May 3, 2022This is a race condition, did not crash with -onethread. Attached the collected threaded callstacks, although they look misaligned. Licensee has provided a suggested fix. ...
LevelInstance: Editor Texture Streaming (UDN)
UE - Engine Scaling - Streaming - Level Instances - Aug 14, 2023Further investigate and fix Editor Level Instance texture streaming data update which currently isn't being updated when moving a Level Instance in the editor. ...
Cannot copy from the message log when building with Clang
UE - Editor - Jan 8, 2024This was disabled for clang a long time ago in CL 3019423 due to a codegen crash but seems like the bug is fixed now ...
Metdata 'ForceAsFunction' does not prevent conversion to event
UE - Framework - Blueprint Editor - Mar 6, 2025Quote from the UDN: This is easily fixed with a conditional in bool FBlueprintEditor::ConvertFunctionIfValid(UK2Node_FunctionEntry* FuncEntryNode) which we've done locally, but should probably be ...
App crashes on launch when packaged for Vulkan with Scalable 2D/3D
UE - Platform - Mobile - Nov 4, 2016No Vulkan SDK was installed Crashed on a Nexus 6P ...
Linux Vulkan editor crashes OOM on older graphics cards
UE - Graphics Features - Oct 19, 2018Vulkan editor is very crashy on older cards due to memory pressure. I have to switch to OpenGL to work on the unrelated bugs. I'm attaching the details of the particular failure I had (see VulkanMe ...
Animations imported with Skeletal Mesh are not marked as dirty and don't get saved
UE - Editor - Content Pipeline - Import and Export - Jun 21, 2016Animations imported with Skeletal Mesh are not marked as dirty and don't get saved. They disappear when the editor is restarted. This does not occur in 4.11 or 4.13. ...
ScrollBox: Add Inertial Scrolling (Touch)
UE - Editor - UI Systems - Oct 16, 2015Verify that inertial scrolling works in the ScrollBox and the ListView on touch devices. We have reports that it isn't working in 4.9, it may have been fixed since then, or not be as smooth as it c ...