30 "attempted" stuns

Crzydroid is right I think.

I ran into your problem at first aswell but then thought I'd make sure I have enough attempts so this squad got the job done.

Do you have a video showing instances of "resist" for the non-stuns? Since the Mando allies are constantly getting shock dispelled, it means Palp's stuns only have a 70% chance to even attempt. So if a considerable portion of your counted "attempts" are from that, you need to subtract about 30% from them.

Also, I could be mistaken, but I believe that Maul's stun immunity means attempts can't be made against him. Since he's immune and not resisting, it doesn't register "attempts."