I use MP3Tag v3.31a (64-bit) on two computers. One computer runs Windows 10 and the other runs Windows 11.
In Windows 11, there is a problem with leading zeros when there are more than 99 MP3 tracks.
1 should become 001, but instead becomes 01.
In Windows 10, it works fine.
Do you mean Tag-Filename?
Which Format String do you use for the conversion?
$num(%track%,2) sets the number of padding zeros so that 2 digits appear. This means that you cut away the leading zeros for 3 digits.
Use $num(%track%,3) instead.
I see it now. Sorry for the inconvenience.



