The issue "[macOS] Floating and redocking a document creates an empty floating window which cannot be closed" (REF: AF-1499) has been fixed by the developers in internal build &quot2.4.0.2185&quot. This fix should soon be available as a customer beta and is planned for inclusion in the next customer release. Customer beta builds are announced here and you can participate by following these instructions. If you still experience this problem once you are using that build version (or