Unreal Engine Issues
Unreal Engine Issues
Crash on packaged game. 4.23 will not nativize a class that creates instanced properties inside itself
UE - Gameplay - Oct 1, 2019Description from the user: up to 4.23 properties nativize normally if they are written in C++ with the Instanced specifier. The discerning difference is that that there was no Blueprint Class itsel ...
Steam VR client crash when connecting to Server
UE - Platform - XR - Jan 6, 2020Client crashes when connecting to server on Vive. Did not reproduce with Oculus Rift. ...
Reroute nodes in blueprints cause visual issues for events when using create event.
UE - Gameplay - Jul 25, 2016When adding a reroute node between a "create event" node and any "Bind Event to...." node, the combo box list in "Create Event" node will disappear. Workaround: If the "create event" node is first ...
[MetaSounds] - Changes to Sort Order do not undo/redo as expected
UE - Audio - MetaSounds - Nov 15, 2022Changes to the sort order do not revert the order of inputs on a node when undone. It will change if the node is refreshed or the graph is saved, however. ...
Unreal Editor 5.4.4 crash when reproducing a LevelSequence in loop while PIE.
UE - Anim - Sequencer - Sep 9, 2024A crash inside Unreal Engine Editor version 5.4.4 occurs when reproducing a Level Sequence while in PIE. This issue is a regression. It only crashes in version 5.4.4. It was working correctly in ver ...
Lumen ignores Landscape Holes (Landscape Visibility) when Hardware Ray Tracing is enabled and Ray Lighting Mode is set to Surface Cache
UE - Graphics Features - Ray Tracing - Jan 31, 2025Context Lumen is the default global illumination and reflections system. Lumen renders diffuse interreflection with infinite bounces and indirect specular reflections in large, detailed environments ...
TRASH_Comp in Octree that missing unregister
UE - AI - Navigation - Feb 25, 2025the reproduce video and project are in the slack links: Slack Link: [Link Removed] ...
Values for InitialOnly replicated arrays can fail to be captured in replay when removed and re-added between checkpoints
UE - Networking - Oct 2, 2025When the first checkpoint is recorded, the correct array properties will be captured in the LifetimeChangelist. When these array items are later removed and another property on the actor is changed, ...
Missing logging or error when applying an anim instance to a skeleton that the anim instance doesn't match.
UE - Anim - Runtime - Feb 9, 2026Currently, we detect whether an anim instance is supported by the skeletal mesh and, if it isn't, unreference the instance, but we don't error or warn the user that this happened. This leads to conf ...
Landscape Grass Type will not build with static lighting leaving 'Lighting needs to be rebuilt warning.'
UE - World Creation - Worldbuilding Tools - Foliage - Sep 3, 2015When using the Landscape Grass Type and using a Static or Stationary light will throw the 'Lighting needs to be rebuilt' warning. ...