Running 1.0.1 (34) on Big Sur 11.2.2, when loading a folder of FLACs from a SMB share...
When the FLAC files are loaded, the sort order uses the one set in View > Sort By. However, choosing a different sort order (or the same column, but reversed) has no apparent effect: the FLAC file sort order doesn't change. Except, there's something odd: if you click and select a FLAC file, the tag pane on the left shows a different FLAC files contents (as if the sort order does change but its displayed in the list of files on the right).
I've not dared make any changes yet since I'm scared of updating the wrong files. If it's not clear or can't be reproduced, I can add some screenshots.