I'm not able to remove a solution from PowerApps environment. I get this error message:

I have tried to analyse the dependencies and got:

So I tried to remove the Flow - but this is not possible because it is grayed out:

Than I tried to solve the problem by removing all connection references from Flow - it's now empty:


However, my solution have still this reference:

and deleting the flow fails also because:

What can I do?