Unreal Engine Issues
Unreal Engine Issues
Deprecating a non-const blueprint interface function replaces the implementation of the event with an empty custom event
UE - Gameplay - Blueprint - Oct 19, 2023This behaviour is only observed when implementing the function as a custom event from a blueprint interface. This behaviour is not observed in actors where the blueprint interface function is implem ...
Compiling Blueprints breaks socketed attachments of actors attached to non-root components
UE - Gameplay - Blueprint - Oct 12, 2023When blueprints are compiled, instances of those blueprints have their attachments detached and then reattached. Reattachments always occur on the RootComponent regardless of which component they we ...
UBlueprintEditorLibrary::RemoveUnusedVariables doesn't treat the implicit target of an Event nodes as used
UE - Gameplay - Blueprint - Oct 4, 2023UBlueprintEditorLibrary::RemoveUnusedVariables removes (object) variables from a blueprint even if that blueprint graph had Event nodes that are bound "inline" to that object variable. For example: ...
'GetClassDefaults' Can Cause Blueprint To Become Modified When Unrelated Blueprint Is Compiled
UE - Gameplay - Blueprint - Sep 22, 2023The stems from a really old change (CL 2948683) to fix [Link Removed]. Compiling ObjectA will call RefreshExternalBlueprintDependencyNodes on its dependent BP, ObjectB_ReferencesA, which reconstru ...
Crash when editing nested Blueprint structures
UE - Gameplay - Blueprint - Sep 22, 2023See submitter's analysis here: [Link Removed] ...
Gameplay Tags: Consider tag redirects in RequestGameplayTag()
UE - Gameplay - Blueprint - Sep 6, 2023Users can obtain a FGameplayTag reference by calling FGameplayTag::RequestGameplayTag(TagName) passing in a path like MyCategory.MyGameplayTag. Users can rename INI-defined tags in the editor via t ...
Crash occurs when blueprint breakpoint is placed after a Draw Debug String node
UE - Gameplay - Blueprint - Aug 22, 2023This is not a regression. Tested in //UE5/Release-5.2 CL 26001984 The editor crashes when playing in editor on a level that has a break point placed on a ticking draw debug string node that is prec ...
Editor becomes unresponsive while Compiling with Save on Success of a Widget Blueprint that contains a Breakpoint in Pre Construct
UE - Gameplay - Blueprint - Aug 2, 2023This is not a regression. Tested in //UE5/Release-5.2 CL26001984 Editor becomes unresponsive after compiling with save on success a widget blueprint that has logic flagged with a breakpoint within ...
TMaps with instanced objects: modifying instanced object data in child affects parent
UE - Gameplay - Blueprint - Jul 25, 2023Given a TMap where the value type is an instanced object: when a child blueprint is saved with modifications to the TMap, and then additional TMap are added to the parent blueprint and the child blu ...
Actor literal nodes in BP level have REINST references
UE - Gameplay - Blueprint - Apr 24, 2023This indicates that we're incorrectly reconstructing pins when the REINST classes are still around. The root cause is actually due to a cyclic dependency with external actors when using World Parti ...