I just wanted to throw a quick blog out there for our customers that are using routing. (This issue can happen more than with just routing, but this is where I typically see it most.) I tend to switch my routing databases and library components around quite frequently, and every once in awhile I will run across an error that states “a document named ’fitting name’ is already opened. Do you want to show those already opened document?”
There is a perfectly logical explanation for the error. The error typically comes up when a document with the same name as a document open in the assembly is opened from a different folder. The fix is quite simple; consolidate your library into one folder or ensure that all of your components are opening from the design library folder and the error should go away.
Hopefully this will help!