Can’t join calls 4 back up

As the title states, I get the calls for backup, but it won’t let me join them from the map, or if I go into social, it won’t show them as invites anymore. I don’t know what is different in the last week. Do I have to turn off my companion?

Also, as I mentioned in another comment, if anybody is trying to farm Saint Elmo‘s, I’m more than happy to join.

Axil603 ps5