Unreal Engine Issues
Unreal Engine Issues
Non-deterministic cooking issue in .uexp of level asset file
UE - Core - Data Pipeline - Cooker - Jan 17, 2023There is a deterministic cooking issue with .uexp map of level asset. [Link Removed] Closed is the similar issue fixing by ...
Can't connect Date Time and Time Spawn pins to math nodes
UE - Framework - Blueprint Editor - Feb 2, 2023we can do a "cheap fix" here by adding the "IgnoreTypePromotion" metadata to the date time functions, but there are some underlying issues with the FindBestMatching func in this case causing it to f ...
Light function materials using WorldPosition do not render correctly to volumetric fog if there is more than one
UE - Graphics Features - Mar 27, 2023There is a one-line fix for this in a shader file, see their PR on GitHub:https://github.com/EpicGames/UnrealEngine/pull/10251/files ...
Crash when double clicking on RowStruct's CurveEditor
UE - Editor - Mar 15, 2024This problem can be reproduced with UE5.3 even after applying fix [Link Removed] Closed . We have verified this issue with U ...
Initialization error when creating FEventReply objects from Python
UE - AI Workflows - UI Systems - UMG - Nov 28, 2025the handled value passed to unlock_mouse is actually treated as unhandled, because FEventReply has no uproperty and no Identical()function of its own. Adding WithIdenticalViaEquality can fix this is ...
Start time of subtitle gets incorrectly modified at runtime
Tools - Apr 14, 2016The time field of a subtitle is incremented incorrectly at runtime. This is caused by the wrong array being modified by the subtitle manager when queuing subtitles. A fix is provided by the licensee ...
Viewports: Marquee selection always selects skeletal meshes in ortho viewports
Tools - Apr 16, 2015Box select always selects skeletal meshes in ortho viewports, even when not touching the actor. Switching on Strict Box Selection fixes it as a workaround. ...
Crash in FMediaPlayerBase::TickPlayer in Shipping builds
Media Framework - Jul 28, 2017A crash can occur in FMediaPlayerBase::TickPlayer in Shipping builds. This is because FMediaPlayerBase::NativePlayer is not a thread-safe shared pointer. The fix is to make it ESPMode::ThreadSafe. ...
Allow demo functions from Execute Console Command.
UE - Networking - Aug 10, 2017Continuation of [Link Removed] Previous ticket addressed the crash. However, it didn't fix the FScoedLevelCollectionContextSwitch to allow for demo commands to be run from Execute Console Commands. ...
Ensures reparenting a child blueprint with a call to parent function in interface function
UE - Gameplay - Blueprint Editor - Oct 10, 2017REGRESSION: Yes, does not occur in 4.17.2 Ensures occur when reparenting a child blueprint that has a Call to Parent Function in a function from a Blueprint Interface. ...