I was in the Constance group today and had both of these situations numerous times over the 45km I spent with the group. Being shoved out to the side and by one random rider who was way outside of the rest of the robopacer group.
Then getting stuck behind people at the back losing the wheels ahead of them and because my absolute power is not as high as others, I can’t get past them easily to catch up the main group again. But if I can steer around them I easily ride away from them and catch up.
That bit is annoying and probably part of the reason for this topic on lighter robopacers:
That’s one of the veteran riders in Zwift with huge amounts of distance riding in groups and leading events.