Apparently other locations had some problems with paper jams from the ballots, but at least my operation had 3 machines and could have easily handled our voters with just 2 active without resorting to hand-filled ballots.
The only real difficulty is the absentee ballots which were obviously a new effort (at this scale) lacking infrastructure. And they were prevented from processing any ahead of time. I think calling this "dangerous" or a "disgrace" is, in fact, blatantly disgraceful and dangerous.