Need a fix for this issue - when deleting old snapshots, Mac OS hangs and becomes unresponsive for a time (even with a spinning beachball). Waiting for the deletion process to get beyond 60% or so, the beachball goes away and all is normal again.
Eventually, it completed. Most times it just takes a short period of time. This time it took over 30 minutes. However, I have not experienced the problem again so it is transient.