I just found a workaround for when party members fail to follow you!

I’m guessing y’all have been having this happen a lot too: you jump from one platform to another. Maybe one or two party members follow you… or maybe they all just stand on the ledge, picking their noses. They can all make the jump. Why won’t they join you?… So now you have to ungroup your party, manually make each laggard jump over, and regroup. It’s been maddening lately as I’m in an area with lots of jumping and having this happen very frequently.

Solution (and tl;dr): Simply ungroup and regroup. This seems to reset all your party members’ pathfinding and get them “unstuck” so they will jump over properly. I’m guessing this will solve other similar pathfinding issues as well.

This is such a simple workaround I’m surprised it took me so long to figure it out. I hope it helps someone else.