Working on Windows 10, dual screen setup with Arduino IDE 2.0.0-rc2 (downloaded as zip)
When I open the IDE it loads my last project which has a number of files. On first opening it shows part of the path in the title of the tab making them too wide and hard to read. Closing the IDE and opening it again solves the issue and only the filenames are shown as the title of the tab (see attached images)
I've just checked that. And yes, all the files are opened twice. I did not notice that before (I did only now realize that there is a way to pull a tiny scrollbar below the tabs)...
It seems to be quite consistent that it happens every other time when I start the IDE (so once it's ok, the next time it's opening the files twice).
Also, in the pulldown at the right side, they only show up once even if they are opened twice. But in the Explorer on the left, they are shown twice in "OPEN EDITORS".