[X] Filter doesn't remember positioning

No

I mean yes, if I turn off Filter before exporting. If I don't- then when settings are imported, the Filter box id moved

I don't get errors [related to settings / exporting / importing]

To prevent such issues, I always install fresh copy of OS when I change motherboard. I restore my OS quite regularly. I make permanent changes to OS only when I first test them. I have the whole system and software on drive C. Mp3tag was installed in default location. I only have one user account. I have an antivirus

Although it is most likely that when something went wrong when I started using this machine. Because I don't remember that I had that problem 10 years ago. And here Lame filter position problem I wrote

That gives me an estimated time of the problem starting to appear either at the moment of a new computer or a few months after it. The previous one was running on Windows XP; now I have Windows 7