Unreal Engine Issues
Unreal Engine Issues
Regression: "Play particle effect" anim notifies are not seen in the editor playing level sequence/matinee when Attached is set to false
UE - Graphics Features - Dec 21, 2017Not Attached particle system is not seen in the viewport of the editor. This particle will be seen normally when PIE. Regression? Yes. This issue is not reproduced in 4.17 version. You can simply ...
Spring Arm Component attached to a Vehicle in a multiplayer environment will cause the Vehicle to jerk forward and backwards
UE - Networking - Aug 11, 2016Spring Arm Component causes vehicle to jerk forward and backwards in a multiplayer environment. ...
Compiler error after changing the class in a Spawn Actor from Class node, undoing with Ctrl + Z, refreshing the node, and reconnecting exposed variables
UE - Gameplay - Blueprint - May 26, 2015Compiler error after changing the class in a Spawn Actor from Class node, undoing with Ctrl + Z, refreshing the node, and reconnecting exposed variables. "Error Internal compiler error inside Creat ...
An Actor BP with an editable variable that references another Actor in the level will reference multiple examples of that Actor if it is duplicated
UE - Gameplay - Blueprint - Mar 13, 2015An Actor BP with an editable variable that references another Actor in the level will reference multiple examples of that Actor if it is duplicated. Reproduced in 4.7.2 binary and Main (//depot/UE4 ...
Projects are failing when Content/Pak folders are added outside of the saved folder
UE - Platform - Mobile - Oct 13, 2016When the Content/Pak file is outside of the Saved Folder, it'll crash with an internationalization error. But when the Content/Pak file is inside of the Saved folder, there is not a crash. ...
AI Pawn Sensing component cannot see and hear at the same time
UE - AI - Mar 12, 2015Hear events are never fired while See events are fired. They are mutually exclusive, with See events taking priority if both happen. ...
Deleting an asset is unsuccessful if the asset is marked for add when using Git source control
Tools - May 3, 2017Deleting an asset that is marked for add when using the Git source control plugin no longer actually deletes the asset. Instead the file will be removed from the Content Browser (it actually stays i ...
ISM + WPO = broken motion vectors?
UE - Graphics Features - Nov 5, 2024Instanced Static Meshes will have incorrect velocity if a Material uses World Position Offset. Fixed WPO in a material causes significant velocity on the ISM. This was also replicated in //UE5/Rele ...
Toggling a Spline component from an open/closed loop through bp's isn't reflected
Tools - Jan 19, 2015Toggling a Spline component from an open/closed loop through bp's isn't reflected ...
Light Function and World Position in 5.4
UE - Graphics Features - Nov 4, 2024When rendering a Light Function into the Translucency Lighting Volume, the World Position Material Expression returns the position relative to the Camera (unrotated), not the World. This can be mor ...