yes - if you simply replace the 1x-1 file that comes with the 763 build with the previously edited or modified version, you will experience the behavior shown in this post:
further, if you reinstall the 763 build version of the 1x-1 file, the roon macOS app will fail to launch – at least that was my experience and is probably due to some things being cached.
only remedy for me was to reinstall the macOS app – fortunately, all my settings were saved and populated automatically in the new download.
after all that, i directly edited the 763 build version of the 1x-1 file to change the circle for artists to a square – as i had done with the pre-763 1x-1 file.
hope this helps
note: i did a comparison of the 763 build and the pre-763 build 1x-1 files and found small differences which i believe rendered the pre-763 file unusable in the 763 build release.