Unreal Engine Issues
Unreal Engine Issues
UMG widgets aren't cleared when levels are swapped via 'open LevelName'.
UE - Editor - UI Systems - Oct 30, 2014If a level has UMG widgets, swapping to other levels (including the level you're already on) doesn't clear away the UMG widgets. ...
AND and OR nodes evaluate second argument even if it's unnecessary
UE - Gameplay - Blueprint - Oct 12, 2015Using the AND and OR nodes in blueprints will evaluate the second argument even if the first is enough to pass/fail the condition. Using the AND node where the first argument evaluates to false sti ...
Unexpected behavior resulting from overlapping or touching physics actors when Simulate Physics is enabled through input
UE - Simulation - Physics - Sep 21, 2015Weird behavior occurs when toggling Simulate Physics on physics actors by input instead of on BeginPlay. Multiple odd behaviors are present such as touching physics actors ignoring collision. Test ...
Normals Reversed when T0 is set as Reference Pose
Tools - Mar 11, 2016When T0 is set as Reference Pose in the import settings, on an asset where faces have been rotated significantly (90 or 180 degrees) from the initial bind pose, the result will be some faces inverti ...
Editing an instanced variable that is nested in two other instanced variables causes a crash
UE - Gameplay - Blueprint - Jul 2, 2015If a user edits a instanced variable which is nested inside two other instanced variables in blueprint editor, a crash will occur ...
If a component has been rotated at all, running ComponentSweepMulti on it does not return the correct position of any colliders on the component
UE - Simulation - Physics - May 14, 2015ComponentSweepMulti does not return the correct location of colliders if the component that is passed in has been rotated at all. The actual collision on the object in the game will be correct. ...
UEnum::NumEnums appears to be returning one more than the actual number of elements in an enum.
UE - Foundation - Core - Jan 6, 2015A user reported that UEnum::NumEnums appears to be returning one more than the actual number of elements in the enum. ...
Rearranging the position of enumerators in an Enum BP will change references to the enumerators inside Data Tables based on position rather than value
Tools - Nov 12, 2015Rearranging the position of enumerators in an Enum BP will change references to the enumerators inside Data Tables based on position rather than value. Reproduced in 4.8.3 binary, 4.9.2 binary, 4.1 ...
Clothing Pops on start and LOD switching
UE - Simulation - Physics - Character - Sep 6, 2018Clothing can have noticeable popping when switching LODs, and there is currently no mechanism to initially start cloth in a resting pose, causing popping on spawn. ...
A Skeletal Mesh simulating physics that hits a Geometry Collection Actor with OneWayInteraction true, OneWayInteractionLevel 1, and is using Damage Propagation (default) will be accelerated so fast it immediately disappears by hitting the world limits
UE - Simulation - Physics - Destruction - Jan 20, 2025A Skeletal Mesh simulating physics that hits a Geometry Collection Actor with OneWayInteraction true, OneWayInteractionLevel 1, and is using Damage Propagation (default) will be accelerated so fast ...