Rubberbanding/tethering not working after update

Group workout on Thursday (zwift event) the group was not tethered together. We had 40 riders and there were folks who were 2 min behind and ahead. I was leader and in middle with no one. We’d regroup and then group would speed off. I have done this workout group for 15 weeks - so I know it is not working like ‘normal’.

Today(sat 5/30) we have a meet up with 20 people and ‘keep together’ was selected but the group is not being kept together.