Unreal Engine Issues
Unreal Engine Issues
Assertion failed: UnscaledViewRect.Width() > 0
Tools - May 23, 2018Crash when using new FCanvasDrawer Licencee notes that crash does not occur if "new FCanvasDrawer" is commented out. ...
DeferredDecal has rendering issue on iphone
UE - Platform - Mobile - Mar 9, 2018I uploaded a test project. The issue can be reproduced at Iphone8(IOS 11) and Iphone6s(IOS 10.3.2). ...
Only exactly matching structures are considered compatible
UE - Gameplay - Blueprint Compiler - Dec 31, 2022in UE 5.0.2 open TestActor Blueprint compile correct. but in UE 5.1 Blueprint Compile not correct ...
Anchor text can be scaled via the scale box
UE - Editor - UI Systems - Mar 13, 2017Anchor text can be scaled via the scale box. The scaling for the anchors of widget can be affect if placed in a scale box ...
"Error in Feature pack D:/Release/FeaturePacks/TP_VirtualRealityBP.upack" when opening a project in editor.
Docs - Samples - Aug 2, 2016The following warning appears in the Output Log when opening any project in editor:LogFeaturePack:Warning: Error in Feature pack C:/Program Files (x86)/Epic Games/4.13/FeaturePacks/TP_VirtualReality ...
[CrashReport] Ongoing CollectGarbageInternal() assertion in 4.17
Tools - Aug 22, 2017This callstack is occurring in 4.17.0 and 4.17.1, and appears to be a continuation of [Link Removed], which was fixed in 4.16.2 with CL 3502786. I'm not re-opening [Link Removed] because there are ...
Projects crash on Android when trying to load mips
UE - Platform - Mobile - Jan 20, 2017Projects that are deployed in the Debug configuration crash when trying to load mips on the Android device. I do not see this issue when launching a project onto Android using the Test configuratio ...
Open street map building don't cast shadows in raster mode
TM - Rendering - Feb 14, 2025Reproducible with cascaded and virtual shadow maps. Seems to be a regression from 2024.1.2. All TM 2025.x version have this issue. [Image Removed] ...
Arrays on multicast events called from the server are not passed to clients
UE - Networking - Jul 19, 2018Arrays that are passed into a Multicast Event as an input are not available on clients who call the function Regression?: Yes This did not occur in 4.19.2 ...
Missing PSO Precaches in the engine
UE - Rendering Architecture - RHI - Aug 20, 2025A licensee wanted to report some missing PSO Precaching they found, which they have fixed locally: 1. UCableComponent doesn't implement CollectPSOPrecacheData or call CheckPSOPrecachingAndBoostPri ...