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 - Rendering - 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 ...
Creating Anim Montage drops a frame(s)
UE - Anim - Gameplay - Dec 13, 2018When creating an animation montage, it appears that frames can be lost. ...
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 ...
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. ...
Crash on exit PIE when playing with more than one player on Linux
UE - Platform - Linux - Oct 3, 2016When playing in non-single player game in the editor (either set # players or check dedicated server checkbox), the editor will crash when the play session ends. Regression: Yes - editor does not c ...
Editor Freeze-Crash if Possessing Pawn with AI controller
UE - Gameplay - Mar 19, 2018When trying to possess an already existing, uncontrolled character with an AI controller on server (from actor component) while in multiplayer mode, the editor keeps freezing until destroyed with t ...