[TBC] Bot enters regen state during ObjectManager.Me.InCombat

Example screenshot of this: 

Quote

[D] 10:54:43 - successfully casted: Ice Barrier
10:54:44 - [Regen] Use drink Conjured Sparkling Water
10:54:58 - [Regen] Finished
10:54:59 - [Fight] Player attack before being attacked by Rock Stalker (lvl 58)
[D] 10:55:30 - [MovementManager] Avoid wall: StrafeLeft
[D] 10:55:32 - [MovementManager] Current pos: -7508,243 ; 1112,508 ; -1,46689 ; "None" - Target pos: -7504,142 ; 1107,832 ; -0,9357554 ; "None" Continent: Kalimdor Tile: 29.91405_46.07796
[D] 10:55:32 - [StuckResolver] Started.
[D] 10:55:35 - [StuckResolver] Done - Stuck count updated, new value: 13.
[D] 10:55:37 - [Fight] Mob seem bugged
[D] 10:55:38 - [Fight] Fight stopped
10:55:38 - [Resurrect] Player dead

This is a log of it just standing around and not fighting back. Potentially, this could be caused by me, but I don't think so.
What could cause stucking in MovementManager when there is not even any walls around?

For testing, I tried using this code (calling start and stop from a plugin).
But nothing is ever logged, so I think ObjectManager.Me.InCombat is incorrectly returning false. It should be the same as this.

public static bool AffectingCombat(this WoWLocalPlayer me)
{
  return Lua.LuaDoString<bool>(@"return (UnitAffectingCombat(""player"") ~= nil)");
}

public class RegenStop
{

    private static WoWLocalPlayer Me = ObjectManager.Me;
    private static Engine engine;
    private static Regeneration regeneration = new Regeneration();

    public static void Start()
    {
        FiniteStateMachineEvents.OnStartEngine += (Engine engine) => {
            RegenStop.engine = engine;
        };
        FiniteStateMachineEvents.OnRunState += AntiRegenEventHandler;
        FiniteStateMachineEvents.OnBeforeCheckIfNeedToRunState += AntiRegenEventHandler;
    }

    public static void Stop()
    {
        FiniteStateMachineEvents.OnRunState -= AntiRegenEventHandler;
        FiniteStateMachineEvents.OnBeforeCheckIfNeedToRunState -= AntiRegenEventHandler;
    }

    private static void AntiRegenEventHandler(Engine engine, State state, CancelEventArgs cancelable)
    {
        if (state.DisplayName == "Regeneration" && Me.InCombat)
        {

            Logging.WriteDebug("cancelling regen while in combat");
            cancelable.Cancel = true;

            RegenStop.engine.RemoveStateByName("Regeneration");
            ReenableRegen();
        }
    }

    private static async void ReenableRegen()
    {
        await Task.Delay(10000);
        engine.AddState(regeneration);
    }
}