Unreal Engine Issues
Unreal Engine Issues
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 ...
[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 ...
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] ...
LODbias settings appear to have no effect when specified by GPU on android
UE - Platform - Mobile - Oct 3, 2019When setting the LODbias via the device profile for a specific Android GPU it does not appear to have an affect on the textures when run on the device ...
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 ...
MaxDrawDistance set by CullDistanceVolume is lost on saving sublevel
UE - World Creation - Worldbuilding Tools - Feb 21, 2025The UpdateCullDistanceVolumes behavior when saving was changed by CL-36588597. Only CullDistanceVolumes in the same sublevel can affect Max Draw Distance. ...
Changing Blueprint Interface's Const Status Doesn't Update Blueprints its Already Implemented In
UE - Gameplay - Blueprint - Nov 8, 2016Implementing an interface that contains const functions and later attempting to change these functions to be non-const does not update the status of the functions inside of the actor they are implem ...