Unreal Engine Issues
Unreal Engine Issues
A Blueprint that references a macro from a macro library cannot be saved if the macro is deleted and then the deletion is undone
UE - Gameplay - Blueprint - Sep 9, 2015A Blueprint that references a macro from a macro library cannot be saved if the macro is deleted and then the deletion is undone. The following error is given: Can't save ../../../../../../UnrealEn ...
When using the Delete key to delete a key frame for an animation in UMG the entire timeline is removed
UE - Editor - UI Systems - Jan 12, 2015When using the delete key to remove a key frame from an animation timeline the entire timeline is removed. ...
Renaming a Collapsed node containing a function with the same name will rename both the function and the collapsed node
UE - Gameplay - Blueprint - May 22, 2019If a collapsed node graph shares the name of a function that resides in the node graph, it will be renamed along with the collapsed node graph if the Collapsed node graph is renamed. ...
NPC - When an NiagaraParameterCollection asset is duplicated or when its namespace is changed, any existing parameters get incorrectly duplicated/renamed with the addition of the namespace prefix
UE - Niagara - Sep 30, 2024When an NPC asset is duplicated, the ne wasset gets incorrectly duplicated parameters: one set with the correct names, and one set with the original namespace prefix embedded into the names. These i ...
Wrong Anim Notify is Deleted
OLD - Anim - Jan 16, 2015When deleting an Anim Notifiy in the Notify timeline, if an instance of that Anim Notify exists to the left of the selected one, it will be deleted instead. If numerous instances exist to the left ...
Crash when copying and making a button widget the root of a second widget blueprint
UE - Editor - UI Systems - Apr 13, 2021Pasting a button element from one Widget Blueprint into a second Widget Blueprint that has had its root Canvas Panel deleted results in a crash. The crash only occurs when the Canvas Panel is delete ...
Crash when editing Gameplay Effect containing a deleted/renamed Gameplay Attribute
UE - Gameplay - Gameplay Ability System - Mar 9, 2025When modifying the name of a gameplay attribute that is used with a modifier on a gameplay effect, attempting to remove/change the modifier causes an editor crash. This appears to be due to line 29 ...
Widgets become unresponsive If a button's Down and Up click is interrupted
UE - Editor - UI Systems - Aug 24, 2015If a button's interaction settings are set to Down and Up and the button is disabled in between Down and Up (The button is clicked and held and becomes disabled before releasing the button). All inp ...
Deleting struct in Windows Explorer leaves dirty traces in BPs.
UE - Gameplay - Blueprint - Mar 3, 2020UND: https://udn.unrealengine.com/questions/559972/invalid-map-in-blueprint-unable-to-be-deleted-urge.html If you delete a struct in Windows Explorer manually, then open a project/BP, it will ask t ...
Deleting Texture 2D asset generated after saving a level in a project with Generate Mesh Distance Fields deleted .umap file
UE - Graphics Features - Oct 16, 2015If "Generate Mesh Distance Fields" is active within the project settings of a project, the .umap of a level will be deleted if a landscape is created and the level is saved, then the 2D texture that ...