Unreal Engine Issues
Unreal Engine Issues
A Simulating Physics component with StartAwake = false will be awoken by a Welded component
UE - Simulation - Physics - Jan 10, 2025A Simulating Physics component with StartAwake = false will be awoken by a Welded component If a welding occurs during the call to OnCreatePhysicsState, this breaks the start awake disabled flag. Th ...
Deploying from Windows to Linux fails on the first attempt
UE - Platform - Linux - Aug 3, 2017After hitting this failure, if you try to deploy again, then it will work. This only occurs on the first attempt. Initially, I thought I hit a disc space issue I was hitting due to having a sample ...
Actor ClassID Value Read From Data Table only in PIE
UE - Gameplay - Blueprint - Sep 22, 2016When accessing a data table in BP and getting an Actor Class from it the Class will return NULL when in Standalone Game, Launching, or in a packaged game. This only seems to work in PIE. ...
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. ...
GetAllMobileRelevantLayerNames drops those layers which are only connected to RuntimeVirtualTextureOutput Node
UE - Graphics Features - May 6, 2021in UMaterial::GetAllReferencedExpressions, the mobile branch ignores every CustomOutputExpressions including RuntimeVirtualTextureOutput. ...
Fix up IOS errors calling UI API from non-UI threads
UE - Platform - Apple - Jul 27, 2020Ensure 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, 2022Unreal 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: ...