Unreal Engine Issues
Unreal Engine Issues
StateTree: Reentering current state immediately after exiting does not reset variables on tasks with "Should State Change on Reselect"
UE - AI - StateTree - Nov 7, 2024Context State Tree Tasks have a configurable default value 'Should State Change on Reselect' which controls whether the task receives a EnterState/ExitState if completion of the current state is fo ...
[StateTree] Linked Asset trees do not properly transition when On Tick transition is triggered on linked asset that transitions to Tree Succeeded
UE - AI - StateTree - Aug 26, 2024Linked Asset trees do not transition correctly to Tree Succeeded if using an On Tick transition. The Debugger shows that the transition is triggered repeatedly but no state change occurs. Instead, t ...
[AI] Unable to bind StateTree task input to the properties of an output object.
UE - AI - StateTree - Oct 13, 2023StateTree no longer binds to the properties of an output variable from a task or an evaluator. Selecting one of the child properties of the output variable results in an error string being displayed ...
[AI] StateTree can get stuck in a loop when a sub-tree returns Tree Succeeded
UE - AI - StateTree - May 30, 2023After a change to how StateTree handles Sub-trees returning succeeded, StateTree can now get caught in a loop when trying to transition out of the StateTree. Sub-tree completion and status should tr ...
Crash occurs while playing in editor with a State Tree using Bool Compare for a transition state to a child state.
UE - AI - StateTree - Apr 25, 2023This is a regression. Tested in //UE5/Release-5.1 CL2390901 The crash occurred 3/5 times. Crash occurs while playing in editor with a State Tree using Bool Compare for a transition state to a child ...
[AI] Unable to set StateTree asset to use in MassStateTreeTrait
UE - AI - StateTree - Dec 15, 2022You can no longer set the StateTree asset to use in a Mass Entity Config data asset. The list shows as empty even when making a new StateTree specifically using Mass Behavior schema. Attempts to add ...
[AI] StateTree assets need to be compiled again when restarting the editor despite no changes.
UE - AI - StateTree - May 4, 2022StateTree assets show that there are pending changes to compile when reloading the editor. This can also mean that state trees do not run logic for AI as noted in linked UDN thread. ...
State Tree needs to be compiled again after reopening the Project
UE - AI - StateTree - May 3, 2022It seems upon reopening a project with State Trees, they don't always keep their last compiled state or recompile when the project is loading up. Same issue occurred when I removed a Task from a Sta ...
Assertion occurs when undoing a Child State's unparenting from another Child State in AI State Trees, leading to a crash.
UE - AI - StateTree - Apr 15, 2022Assertion occurs when undoing a Child State's unparenting from another Child State. Repro Rate: 5/5Assertion failed: false [File:D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Public\Widgets\Views ...