Unreal Engine Issues
Unreal Engine Issues
Unreal 4.26 Crashes when playtesting with a groom in the scene
UE - Graphics Features - Jan 8, 2021When you hit play with a groom in the scene, the engine crashes Additional notes: First tried adding it to a skeletal mesh through a character blueprint. Engine crashes. Engine doesn't crash if pla ...
Importing Camera FBX into a sequence can crash with a headless editor
UE - Anim - Sequencer - Mar 19, 2021In a headless editor instance we will not be able to send toasts to the user, and we should not notify slate. The Sequencer Tools function library calls MovieSceneToolHelpers::ImportFBXCameraToExist ...
Landscape HLODs are broken in 5.7.2 (Github Release branch)
UE - World Creation - Worldbuilding Tools - HLOD - Feb 6, 2026Landscape HLODs are broke when build from Editor. See repro steps above. I have not provided a repro project as it uses the open world starter map. Note that current Main has additional bugs that o ...
Network profiler crash
UE - Networking - Aug 6, 2020Running with the -networkprofiler command line argument can crash the server on the first engine tick in FNetworkProfiler::TrackFrameBegin because the file writer archive hasn't been created yet. ...
Unloading a spawned Detour AI Controller using Level Streaming causes a crash
UE - AI - Oct 14, 2019In a Level Streaming setup, unloading a level that has spawned an AI Character with a Detour AI Controller causes a crash. This was reported and tested in 4.23 (CL-8386587). This was reproduced in ...
Sqlite plugin crash on iOS
UE - Platform - Mobile - Aug 26, 2021Crash enabling Async Scene and opening level in editor
UE - Gameplay - Jan 11, 2017This is a regression from 4.14.3 at CL 3251583 ...
Crash - console command stat none
Tools - Oct 7, 2020Engine Crash when Running a Screenshot Functional Test
UE - Automation Test - Apr 12, 2023Running a Screenshot Functional test, is causing an engine crash. By attaching a debugger to it, AScreenshotFunctionalTestBase::PrepareForScreenshot() is reached and GEngine->GameViewport is null, ...
Sequencer's View Options>Expand/Collapse Nodes and Descendants (Shift+V) does not Collapse after being Expanded (UE5.6)
UE - Anim - Sequencer - Jun 25, 2025Sequencer's View Options>Expand/Collapse Nodes and Descendants (Shift+V) does not Collapse after being Expanded (UE5.6). As described in the Steps to Reproduce section, the command expands the prope ...