When working in surround I work with mono tracks, grouped together in sets of 5.1 (ie 6 mono tracks). Tracks are grouped as Mix/Edit and Main panning is linked within the group. When I option click the panning grid to reset the panning to default on one of tracks, Pro Tools crashes. This is repeatable and has occurred across multiple versions. If I suspend the group before reseting the panning, then no crash occurs.
Currently on PT Ultimate 2018.4, MacOS 13.13.3 - but bug also repeatedly observed with Pro Tools 12.8 on MacOS 13.12