Unreal Engine Issues
Unreal Engine Issues
[AI] Area Class to Replace does not work on SplineNavModifierComponent
UE - AI - Navigation - Jun 16, 2025The SplineNavModifierComponent does not have the same behavior as regular nav modifier components where the modifier can specify that it only replaces a given NavArea class. Setting the area class t ...
Drag-and-drop any cooked Blueprint class asset into the level viewport crashes the editor
UE - Framework - Blueprint - Jul 14, 2025Dragging any cooked Actor-based Blueprint class asset into the level editor viewport will crash the editor when it has been configured to work with cooked assets. This is a regression that started ...
Crash right-clicking in anim blueprint asset picker
OLD - Anim - Mar 10, 2017Editor crashes when right-clicking in the blank area of the anim blueprint asset picker ...
Crash w. 'Serialized Class LinkerPlaceholderExportObject for a property of BlueprintGeneratedClass'
UE - Gameplay - Blueprint - Sep 25, 2017I was attempting to repro [Link Removed]. I created a new Actor BP, placed it in the level, added a ref to it to the level BP (instead of the projectile approach in the repro), and tried to save my ...
Crash Occurs When Creating Pose Asset from an Animation in Persona
OLD - Anim - Feb 1, 2018Engine crashes when creating a new pose asset in persona using the Create Asset option -Tested with walk, idle, and run anims -Didn't crash only once out of the several times tested with the Third ...
UMG Calibri font space between characters changes depending on the onscreen size of the textbox containing it
UE - Editor - UI Systems - Jan 14, 2020Within a UMG Widget Blueprint. Calibri font space between characters changes depending on the onscreen size of the textbox widget containing it. ...
Crash deleting skeleton when it's being used in current level
OLD - Anim - Sep 6, 2016Crash occurs when the user deletes a skeleton while it is being used in the current level. If the skeleton is not in the loaded level, the crash will not occur. ...
HLOD crash when dragging and dropping actors into their own cluster in the HLOD outliner - ALODActor
UE - World Creation - Worldbuilding Tools - HLOD - Aug 10, 2017Blocking volumes moved into sublevels from the persistent level do not correctly function in standalone game
Tools - Jun 9, 2015If a blocking volume is created in the persistent level and then moved to a sublevel, it will no longer correctly block objects in standalone game. ...
Crash: Pressing ESC/Trigger while in VR mode after entering VR mode with a camera actor selected
UE - Editor - Workflow Systems - Apr 25, 2017When entering VR Mode with a camera actor selected, attempting to either deselect the camera actor or select another actor causes a crash ...