Deadlock if add OU after StackSet creation

Hi AWS,

I experience a deadlock in my account with StackSet inoperable - I can not delete stacks deployed. When I try to delete stacks, I get 'Organizational unit ou-XXX not found in StackSet' error.

The root cause of the issue might be related to the fact I've created my first OU in AWS Organization AFTER I've created the StackSet.

I tried all changes of the StackSet configuration I'm able to come up with but nothing seems could fix it.

Could you check this please?