Unreal Engine Issues
Unreal Engine Issues
Artifacts in imported GLB and GLTF files
TM - Interoperability - Mar 10, 2025Reported in SF [Link Removed] Client reports that many of their GLB and GLTF files they use appear with visual artifacts when imported to Twinmotion. These artifacts only appear in Twinmotion and n ...
Inconsistent events triggered by FlushProcessedKeys during keyboard hold input
UE - Gameplay - Input - Dec 20, 2024Key repeats from the OS do not affect the EnhancedInput normally, but it causes inconsistent event triggers when FlushProcessedKeys is called with holding a keyboard key down. Removing references t ...
Reset seed on emitter looping not working properly
UE - Niagara - Dec 31, 2019The "Reset Seed on Emitter Looping" has no effect when enabled. Tested in: 4.22.3 CL#7053642 , 4.23.1 CL#9631420 , 4.25 CL#10868506 ...
Lighting build fail due to failing to open channel for material data
UE - Graphics Features - Apr 21, 2017Licensee reports lighting build fails for their specific levels which were created in 4.14.1 then moved to 4.15.1. Workaround: Setting LogLightmassSolver verbose level to Warning can show "Warning ...
Occlusion Culling incorrectly culling objects
UE - Graphics Features - Aug 26, 2020When playing in PIE/camera moving from left to right, pieces of the floor grid are culled out when they are not supposed to be. I was able to replicate this issue, however after I brought up the c ...
Crash when using +CVars=r.MobileContentScaleFactor=2
UE - Platform - Mobile - Jan 11, 2016Iphone 6 Plus crashes when using +CVars=r.MobileContentScaleFactor=2, but it will run if you use +CVars=r.MobileContentScaleFactor=1. The project linked is set up with +CVars=r.MobileContentScaleFac ...
Launching QAGame for HTML5 creates an 'uncaught exception: out of memory'.
UE - Platform - Mobile - Jan 18, 2017Launching onto HTML5 opens the browser to Uncaught Exception: out of Memory After running it on a 64-bit browser, the following is printed:uncaught exception: abort("Cannot enlarge memory arrays. E ...
Color bubble has no effect in an Event Graph
UE - Gameplay - Blueprint - Feb 24, 2015If you add a comment to an Event graph Blueprint and change the comment color, the bubble should not change colors unless the Color Bubble detail is checked. I have included photos to better show ...
Major artifacting in FP Template with Skylight in ES31 Deferred
UE - Platform - Mobile - Sep 4, 2015When the First Person Template is deployed to a Nexus 9 using ES31, there is an extreme magenta color over the screen. Disabling post process reduces the bloom, but there is still major color artif ...
Clicking the Closed Loop check box for a Blueprint SplineComponent crashes the Editor.
Tools - May 12, 2015Clicking the Closed Loop option in a new Spline Component results in the Editor crashing. This only occurs in 4.8 Preview 1 (so far). 4.7.6 and Main appear to be working correctly. ...