Let me start with that we upgraded from 2020 sp3 to 2021 sp4 before the issue happened.
If i bom and auto balloon a drawing, then move the balloon leader to a different place on the part it shows a "?". If i move the leader off the part and then try and move it back, it won't attach. This also happens when i manually create a balloon except no leader pops up. This doesn't happen on every balloon but only some.
i saw a post about this in older versions and it said that while creating the explo view, perspective view was on and that i needed to recreate the explo and start over. that didn't work and I never have perspective view on.
I thought this was a something wrong with one document but now its happened to 3 explo views now.
I only saw this post from cad forum but i swear i had seen another one while i was looking the past 2 days
https://cadforum.net/viewtopic.php?f=3&t=184
I'm going to link this post to the same one i posted on cadforum and reddit
https://www.cadforum.net/viewtopic.php?f=16&t=1119&p=13529#p13529
