Unreal Engine Issues
Unreal Engine Issues
Moving assets in the Editor fails to fixup references causing the project to generate errors
Tools - Mar 30, 2020Moving assets in the Editor is very unreliable. References may or may not be fixed up. No direct error is presented or a warning about problems. Any moves of the gameinstance, string table or certai ...
High Resolution Screenshot in Orthographic Unlit Mode Does not Capture Correctly
UE - Graphics Features - Jun 3, 2015When taking a high res screenshot of an object in orthographic view in 'Unlit' mode, the object size in pixel is the same no matter the resolution multiplier. For instance if you set it to 10.0 th ...
Get All Actors of Class is failing to report at Event Begin Play in a streamed level
UE - Gameplay - Sep 3, 2015Get All Actors of Class is failing to report at Event Begin Play in a streamed level. Test project attached. This is a regression: did NOT occur in 4.8.3. Reproduced in 4.9.0 binary and Main (2678 ...
Using Virtual Texture Streaming checkbox in texture editor can break materials
UE - Graphics Features - Feb 24, 2021A texture can be toggled between virtual texture and regular texture using the Convert to virtual texture/regular texture tool in the texture asset context menu. This updates referencing materials t ...
[DataLayer] Optimize Data Layer runtime state replication
UE - World Creation - Worldbuilding Tools - Data Layers - Dec 7, 2023[Link Removed]This issue occurs only when I have a lot of RDLs (I tested 2500 and 1600). I tested with 6 RDLs and had no issuesI also noticed in the server log an error when a lot of RDLs are presen ...
Colon in UPROPERTY category invalidates iterative build
UE - Foundation - Core - Cooker - Jan 13, 2017The presence of a colon ':' character in the category string of a UPROPERTY will cause iterative cooking to generate the following error:Found unparsable ini setting Windows.EditorPerProjectUserSett ...
Saving Level changes the Rotation of actors with parent-child relationships
UE - Gameplay - Components - Nov 14, 2019According to the licensee report, UnrealMath.cpp (588) constfloat SINGULARITY_THRESHOLD = 0.4999995f; It seems that this can be avoided by changing the above value. However, changing SINGU ...
[AI] Failed check in UMassSpawnerSubsystem::DestroyEntities due to EntityManager still procesing
UE - AI - Mass - Sep 7, 2025It crashed when unspawning an AI which will destroy its entity. Inside DestroyEntities "IsProcessing" is true, but when it breaks into the debugger, "ProcessingScopeCount" is 0 (so IsProcessing shou ...
Request for 'Switch on Int' nodes to throw a warning or auto refresh if an execute pin is removed
UE - Gameplay - Blueprint - Nov 17, 2016Request for 'Switch on Int' nodes to throw a warning or auto refresh if an execute pin is removed. For example: If the 0 pin is deleted, users may not realize the pins will reset back to (0,1,2,3,e ...
Editing and committing changes to a PackedLevelActor Blueprint results in a crash
UE - World Creation - Worldbuilding Tools - Level Instances - Apr 5, 2022Repro Ratio: 3/3 Regression was tested in //UE5/Release-5.0-EarlyAccess CL-16682836 since this is a new feature of UE5. The issue did happen ...