Unreal Engine Issues
Unreal Engine Issues
Attempting to override timeline function in child blueprint crashes editor
UE - Gameplay - Blueprint - Sep 24, 2015Attempting to override a timeline within a child blueprint causes the editor to crash. Frequency: 4/4 Crashreporter: [Link Removed] ...
The Radial Blur Shader Doesn't Look Correct With Raytracing Translucency Enabled
UE - Graphics Features - Lumen - Jan 21, 2020The Radial Blur shader doesn't look correct with ray tracing translucency enabled. Found in 4.24.1 CL#10757647 Reproduced in 4.25 Main CL#11050671 ...
[3ds max] Some geometry will display in all black in Path Tracer renders
UE - Editor - Content Pipeline - Datasmith - Exporters - Dec 12, 2025Reported in SF [Link Removed] Some geometry from 3ds Max will display as all black when viewed in Path Tracer rendering. This effect is visible in both UE and Twinmotion. This was tested with Data ...
Crash on play when AIPerception Senses Config element is set to "sense config" options
UE - AI - Sep 18, 2015Setting AIPerception component Senses Config to AI Damage / AI Prediction / AI Team sense config will cause the editor to crash on Play. This may be related to [Link Removed] Crash Reporter [Link ...
Alembic Files Import With Blocky UVs
UE - Editor - Content Pipeline - Import and Export - Dec 6, 2019Alembic files imported come in with blocky UVs. Attached is a zip with the files and pictures that show the issue. Found in 4.23.1 CL#9631420 Reproduced in 4.24 Preview 4 CL#10387632, 4.25 Main CL# ...
Broken Lines when Calling Draw Lines Function in Standalone Game
Tools - May 9, 2016Lines are not drawn correctly when calling the Draw Lines node in blueprints when playing in Standalone mode. Regression? Yes, I ran the same test in 4.9.2 and 4.10.4, and the issue did not occur i ...
Visual inconsistencies when zooming in/out in the designer tab
UE - Editor - UI Systems - Jun 9, 2017Visual inconsistencies when zooming in/out in the designer tab. In the example provided. There is a vertical box containing sever images with a top padding of 1. When zooming in and out of the graph ...
Listen Server Without Microphone Will Drop Clients with Microphone if Voice is Enabled
UE - Networking - Mar 28, 2017Listen servers that do not have a microphone hooked up are dropping clients that do have microphones when the client attempts to transmit voice. The log contains the following errors: [2017.03.28- ...
Screen Space Reflections not showing in Panoramic Capture
UE - Graphics Features - Sep 10, 2020Reflections not showing in Panoramic Capture images. Reported and tested in versions 4.25.3(CL 13942748), 4.24.3(CL 11590370), and 4.23.1(CL 9631420). ...
Array index out of range with StopTree
UE - AI - Mar 26, 2019Crashes when exiting PIE while executing multiple async tasks. By explicitly executing EndTask and FinishAbort of RecieveAbort, this caused by performing out-of-range in array access to InstanceStac ...