Unreal Engine Issues
Unreal Engine Issues
Packaged game crash occurs when inclusive blueprints with an enum that exists in multiple blueprints
UE - Gameplay - Blueprint - Oct 23, 2017THere is an issue with a Packaged game where a crash occurs when inclusive blueprints with an enum that exists in multiple blueprints. In the callstack, it appears that a blueprint is not found, ev ...
Spinbox displays values that differ from the value of the delta
UE - Editor - UI Systems - Nov 1, 2017Spinbox displays values that differ from the value of the delta, when values are displayed for a spinbox their value always reads in the 0.000001 values, instead of listening to the delta. Unsure if ...
HTML5 Black Screen When Launching on Chrome With Mobile HDR Disabled
UE - Platform - Mobile - Nov 2, 2017When launching the project with Mobile HDR disabled it launches with a black screen. This occurs in 4.16.3, 4.17.2, 4.18, and Main, from my testing. Launching with Mobile HDR enabled works fine exce ...
Reimporting an FBX file via the import button does not make the import options appear
Tools - Nov 28, 2017Reimporting an FBX file via the import button does not make the import options appear. Instead of allowing the FBX to reimport with new options, the FBX just re-imports. This issue is a regression. ...
Foliage is Offset When Streaming Existing Levels From World Composition
UE - World Creation - Worldbuilding Tools - Foliage - Jul 3, 2018Streaming an existing level that used World Composition places the landscapes in the correct spot, but any foliage tied to that landscape is placed on the landscape tile at 0,0 instead of its corres ...
SetChildActorClass does not replicate when set to a different class
UE - Gameplay - Feb 20, 2019When using SetChildActorClass to change a Child Actor Class, the change will replicate on the Server but not the Client. The Client will have the original Actor Class after the change happens. This ...
Linked Anim Layer node can become stuck in a single state when attempting to change the Layer
UE - Anim - Runtime - Anim Blueprints - Oct 25, 2022When swapping Layer settings between various Animation Layers on a Linked Anim Layer node, the node can become stuck in one state. The node will become stuck in the Linked Anim Layer state and canno ...
Blueprint debugger: variable getter node displays wrong object's value
UE - Framework - Blueprint Runtime - Jul 28, 2023After triggering a breakpoint in blueprint, variable getter nodes can display the value of a different object than the node's target. For example: if an actor class has a value MyBool and the bluepr ...
Keying Level Sequence Crashes Engine
UE - Anim - Sequencer - Dec 12, 2024Repro rate 3/5 Regression to be tested Testing with a fresh level sequence no crash occurs, Tried to do it without rekeying and did not get a crash. I repro'd it a few times and sometimes no crash ...
Niagara Data Interface "Errors and Warning" section on Module Details not updating when error messages change
UE - Niagara - Aug 14, 2025This is a regression: it worked correctly up to UE 5.5, but not in 5.6 or mainline latest. Possibly caused by CL 40093049. Class UNiagaraDataInterface provides virtual method GetFeedback(), which a ...