Unreal Engine Issues
Unreal Engine Issues
Editor delay on end simulation in 4.14
Tools - Nov 16, 2016When stopping PIE Selected Viewport or Simulate Mode there is now a 1 to 2 second delay that did not occur in previous versions of the Engine. Regression: Did not occur in UE4.13 or earlier ...
Blueprint Macro Libraries based on Actor cannot be reparented to Object
UE - Gameplay - Blueprint - Jul 13, 2015Blueprint Macro Libraries based on Actor cannot be reparented to Object Reproduced in 4.7.6, 4.8.1, and Main (//depot/UE4/Promoted-CL-2605171) ...
Planes have a Mesh Distance field exceeds the size of the original mesh
UE - Graphics Features - Sep 20, 2017Planes have a Mesh Distance field exceeds the size of the original mesh when the value is set to 2. This behavior does not seem intended as the cube does not experience this issue when the value is ...
Camera rotation stops at game border when using Begin play node
Tools - Jan 8, 2018There is an issue where Camera rotation stops at game window border when using Begin play node with the mouse. This issue does not happen if you don't use the begin play node with the Set show mouse ...
FStateTreeExecutionContext::GetDebugInfoString() outputs wrong info and crashes when using linked state trees
UE - AI - Debugging - Apr 17, 2025When using State Trees, the AI Debugger can be accessed during play to show information about their current execution state. If a behavior tree is currently in a state that references a linked tree, ...
Coordinate indicator disappears when entering landscape editing mode
Tools - Oct 24, 2016Coordinate indicator disappears when entering landscape editing mode. The indicator disappears after switching to landscape mode in the editor Note: This appears to work in 4.13.2 ...
Quickly docking tab into the main window can cause duplicate tabs to appear
UE - Editor - UI Systems - Slate - Aug 18, 2016When you quickly dock a tab to the main window, you can sometimes end up with 2 identical tabs. This causes some weird behavior, such as every action being done in one window being replicated in the ...
Foliage does not appear in capture target when using "Always Persist Rendering State" when the foliage count is over 1.5k
UE - World Creation - Worldbuilding Tools - Foliage - Jan 10, 2018There is an issue occurring where Foliage does not appear in capture target when using "Always Persist Rendering State" when the foliage count is over 1.5k. The issue does not occur when the foliage ...
Sequencer in packaged VR project does not appear to work when using sequence player on begin play
UE - Anim - Sequencer - Sep 27, 2016Sequencer in packaged VR project does not appear to work when using sequence player on begin play. The HMD no longer appears to be affected by sequencer after the project has been packaged out ...
AISystem::RegisterBlackboardComponent being called not in all valid cases
UE - AI - Feb 6, 2015Observed by 4.7 preview 5 user. After closed investigation it turned out he had two consequent AIController::UseBlackboard calls, which triggered a ensure failure in AISystem::UnregisterBlackboardCo ...