I can´t delete a duplicate boolean Variable maybe a Bug see on the Picture Pleace Help :(

Hi Guys i have Duplicate a Boolean Variable. But the Duplicate Variable has an Error i can´t Delete the Variable and the Game doesn´t Work with this error. I use Unreal Engine for now 1 Year and something like this never Happend to me maybe a Bug how i can Delete it ??? If i press the right mouse buttton i can Only choose (Find references) and (Duplicate) the Error Variable and the Delete Button on Keyboard doesent work too. Look at the Picture. I hope it gives a other way to Delete it ?? Maybe a Console Command ??

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