The problem started recently. I did not have it yesterday.
Additionally, I don't seem to be able to move the tab around.
Yes I got this strange issue frequently too. A workaroud is to minimise the percentage of viewing the screen on your computer (ctrl + scroll) unless the button appears in the screen. After having done this, you can reset your screen. I know it's not ideal and of course the large white strip under the applet shouldn't be there, but at least you can save your changes.
The problem seems to have disappeared overnight, but just in case it returns, I'll try using ctrl+- instead as I don't have a mouse to scroll with. I've figured out that you can go into settings and press "save" which duplicates the project with your saved changes but it's tedious.
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