Unreal Engine Issues

Fail to save level with a Blueprint component containing User Data

Set World Origin on a Dedicated Server causes Pawn Stuttering

Setting the World Origin after enabling Multiplayer World Origin Rebasing in the Project Settings causes the Pawn to flicker on movement. Tested in 4.21.2 (CL - 4753647), 4.22.2 (CL - 6574378), 4 ...

NullNetworkReplayStreamer::tick cost much more time in 4.22 when record replay

Packaged Dedicated Server will not regenerate navmesh around instanced mesh

The foliage instanced mesh, as well as ISM and HISM components both appears to be unable to export navmesh data for generation once we introduce a change in the contents. This error only shows up in ...

iOS Show External Login UI Blueprint Node fails on new iOS devices

I have been trying to test iOS online subsystem functionality for my game and thought that this blueprint node was just broken. This bug will probably catch many UE4 developers that are new to iOS b ...

Niagara emitters occassionally don't receive death events

The death events for Niagara emitters on a Niagara System are ignored every few loops. Tested in 4.21.2 (CL - 4753647), 4.22.2 (CL - 6547378), 4.23 (CL - 6859026) ...

Enabling Omni Directional Stereo Capture Breaks Draw Material to Render Target Functionality

Enabling ODS (omni directional stereo capture) in project breaks Draw Material to Render Target functionality. Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 6574378, 4.23 CL# 6836133 ...

Component icon changes when undoing the adding of blueprint components

When the user adds two blueprint components to an actor blueprint, compiles the component blueprint, and then undoes adding one of them, the icon for the remaining component changes. This doesn't o ...

Force Feedback is weaker on Linux when compared to Windows

Force Feedback Effects vibrate weaker on Linux when compared to Windows in the same test project. This was reported and tested on 4.22.2 (CL-6574378). This was reproduced on 4.21.2 (CL-4753647) and ...

Async Tick error on Particle System

Whenever adding a Beam Data module along with Beam Source and Target, the Cascade editor produces an "NO ASYNC TICK" error. Tested in 4.21.2 (CL - 4753647), 4.22.2 (CL - 6547378), 4.23 (CL - 682596 ...