Action Group window locks

If I go to Actions -> Actions and from here open (double click) an existing action - for example a regular format tag field I have created - and then close that popup with the top left red round close button, the entire program "locks" and I have to force quit it.

I am using version 1.7.2.

I know I can use the Cancel button but it's still an UI error I thought should be looked at.

Many thanks for pointing! I'll look into it and keep you posted.

Just to confirm: is it working for, e.g., the Replace or Adjust Cover actions?

Cheers!

After trying the other two you mentioned, for me it only affects format tag field.

I've fixed the issue with Mp3tag for Mac v1.7.3.

Thanks again for taking the time to report this issue!