Unreal Engine Issues
Unreal Engine Issues
Static/Skinned Mesh SPropertyEditorAsset widget performance regression
UE - Editor - Jun 7, 2024Virtual Texture Data GetNumMips reports one fewer mip than expected
UE - Graphics Features - Feb 27, 2025FVirtualTextureBuiltData::GetNumMips() can return 1 fewer mip than it should due to a potential clamping issue at the end of FVirtualTextureBuilderDerivedInfo::InitializeFromBuildSettings() where it ...
stat scenerendering not visible on mobile with VR Canvas
UE - Platform - XR - Oct 15, 2018stat scenerendering not visible on Mobile VR with new VR Canvas Layer. Similar debug output are visible (Tested stat memory, stat rhi) Confirmed in Main @ CL 4468496 ...
Creating Anim Montage drops a frame(s)
UE - Anim - Gameplay - Dec 13, 2018When creating an animation montage, it appears that frames can be lost. ...
The ConstructionScript not being called on drag
Tools - May 2, 2019The construction script for a custom actor blueprint does not execute after drag when the scene component is selected. Tested in 4.21.2 (CL - 5660361), 4.22.1 (CL - 6063286), 4.23 (CL - 6248266) ...
Match3 crashes on device after locking and unlocking the screen on iOS
Tools - Aug 23, 2016Aug 23 15:25:15 A6240 UnrealMatch3[987] <Warning>: Assertion failed: CommandEncoder.IsRenderPassDescriptorValid() [Link Removed] [Line: 700] Match3 does not resume after locking and unlocking the s ...
If PVRTexToolCLI is not executable, invalid texture data is used and crash results when launching on device
UE - Platform - XR - Jul 5, 2017Synced the code on Windows and transfered to Mac, the file PVRTexToolCLI lost its executable permission bits... UE4 couldn't run the tool, but carried on processing anyway, processing invalid textur ...
Crash when calling capture mouse as the return value in an OnKeyDown
UE - Editor - UI Systems - Sep 25, 2017The editor crashes when calling an over ridden On Key down function in a widget in order to capture the mouse with the return value of the function. ...
Multiple Physics objects on the client in one place jitter and shake
UE - Simulation - Physics - Jun 4, 2018When simulating physics on multiple objects, they appears to jitter and shake on the client. This can lead to differences between the server and the client. This is especially show cased when runnin ...
Crash due to LAN beacon packet incompatibility in 4.22
UE - Networking - Apr 17, 2019We changed the IP address serialization format without bumping the LAN beacon packet version. Should just need to bump it up. ...