Unreal Engine Issues
Unreal Engine Issues
Particle disappears if it is using PSA_Velocity and setting custom time dilation 0
UE - Graphics Features - Dec 7, 2016A licensee reported some of their particles disappear when setting the actor's custom time dilation 0. This seems to happen when a particle is using PSA_Velocity as Screen Alignment. This repros in ...
Draw as border is completely opaque when size in negative
UE - Editor - UI Systems - Feb 26, 2019When an image widget is set to draw as border it will no longer render as a border if the size is negative. The widget appears completely opaque. ...
Ensure after reparenting Blueprint and moving a property to the new parent
UE - Gameplay - Blueprint Editor - Jul 20, 2023Moving a property from a recently reparented BP to its new parent will assert in FBlueprintCompileReinstancer::MoveDependentSkelToReinst at ensure(PrevStructSize == NewStructSize) This only see ...
A niagara emitter with an empty renderer module does not return a position in the package
UE - Niagara - May 11, 2022FBX import freezes in DataPrep
UE - Editor - Content Pipeline - Visual Dataprep - Mar 3, 2025FBX file import freezes UE while trying to import into DataPrep by the Interchange importer. The import will start, but then a message will pop up stating "Creating snapshot of world content ... " ...
Unreal Editor can get in an infinite while loop when checking the History of an asset under Perforce.
UE - Editor - Workflow Systems - Oct 21, 2024Unreal Editor can get in an infinite while loop when the action Asset->Source Control->History is used in a Blueprint Asset. Reportedly, this issue is only encountered when using the Branches featur ...
GameCenter does not login on Match3 startup on iOS
UE - Platform - Mobile - Aug 23, 2016When launching on or opening a packaged UnrealMatch3 project GameCenter does not login for the paired account. This causes Leaderboards and Achievements to appear blank. Tested on iPhone6s_6240 OS: ...
Crash after changing either the Anim Start or End times of an Animation Composite
UE - Anim - Runtime - Jul 19, 2022This is a regression tested in //UE4/Release-4.27 CL#18319896 Crash after changing either the Anim Start or End times of an Animation Composite when using Enter to confirm their value. ...
Level asset "Diff against depot" opens P4 Merge tool
UE - World Creation - Worldbuilding Tools - Mar 1, 2024You can right click a level asset in the editor's Content Browser and do the action Source Control > Diff against Depot. However, this does not provide a useful diff window. It currently opens the d ...