Running the current latest steam build and noticed that if I have the workshop and citizen windows open and then click to close the citizen window it will close the workshop instead.
Steps to recreate the issue that I did in that one session.
Open workshop (in my case carpenter) and citizen windows.
Click the X in the citizen window to close it.
Workshop window closes instead. Second click closes citizen window as normal.
Hopefully this wasn’t posted somewhere else and i just missed it with my quick search.