Unreal Engine Issues
Unreal Engine Issues
Users project crashes when opening level that loads multiple sub-levels
UE - Foundation - Core - UObject - May 31, 2017Users project crashes when opening level that loads multiple sub-levels. Unable to reproduce this in a clean project so the users project is provided though Epic's box account (link is in the repro ...
Package game and standalone game crashing (possibly related to UE-6766)
UE - Gameplay - Dec 23, 2014Crashes in UGameplayStatics::GetPlayerController, probably because World is NULL. When you package this vehicle game setup or play in standalone, the game will crash. 4.6.1 release crash (Standalo ...
Adding a code class to a blueprint project causes the editor to crash
UE - Foundation - Core - Oct 5, 2017Adding a code class to a blueprint project causes the editor to crash after attempting to hot reload. This only occurs for a fully bluprint project, code projects or BP projects that have already h ...
Crash when using 'DumpLightmapSizeOnDisk' Console Command
UE - Graphics Features - Mar 21, 2017A crash occurs when using the 'DumpLightMapSizeOnDisk' in the Console Command. ...
Compiling a Blueprint that uses a Select node with two different variations of Actor will crash the Editor in 4.9
UE - Gameplay - Blueprint - Jul 17, 2015Compiling a Blueprint that uses a Select node with two different variations of Actor will crash the Editor in 4.9. In 4.8.2 binary, one input of a Select node will be disconnected on restarting the ...
Crash when Deleting Variable from Blueprint Struct
UE - Gameplay - May 23, 2019The Editor will crash when attempting to delete a variable from a Blueprint struct. This crash does not seem to happen if save the map with the actor in it. ...
Crash reported when launching the binary Editor on a 2018 iMac Pro
UE - Platform - Apple - Oct 31, 2018There has been a report of a consistent crash of the binary Editor on launch when it is being launched on an iMac Pro. Additional information from two separate reports about this crash seem to indi ...
Crash when a Deferred Decal (Translucent) base material has a Nanite Override (Masked Surface) Material and the mesh has Nanite + Ray Tracing enabled.
UE - Graphics Features - Ray Tracing - Aug 14, 2025A crash occurs when Nanite override material instance is used in a project with Ray tracing enabled where: 1 The Material assigned to the static mesh uses Deferred Decal / Translucent and the Nani ...
Crash in Hand IK Retargeting with two entries under "IKBones to Move"
UE - Anim - Rigging - Feb 28, 2017Crash in Hand IK Retargeting with two entries under "IKBones to Move" Only seems to happen when you have a hand bone in the second slot of "IKBones to move" ...
Editor crash when adding elements to blueprint Set/Map
UE - Gameplay - Blueprint - Mar 22, 2017Adding multiple element to TMap / TSet variable at once with a for loop causes the editor to lock up / crash (respectively). Regression: No - Map & Set variable types not available prior to 4.15 ...