How many times have you shown up to the next meeting with no one having done their follow-ups for the next meeting?
Next time it happens, that person gets no follow-ups, delegate to someone else who gets theirs done.
If no one is getting follow-ups done, don’t assign them – sounds bad – but if no one’s doing what you need them to, then either you have the wrong roster in the meeting that cares or people are too overloaded to take on more work.
That means the problem your meeting is trying to solve isn’t the top priority and can wait.
I know prioritizing stuff means accepting defeat, but it also changes the perception of everyone being able to accomplish everything with no change in balancing.