Recently the information button on the level start up screen that would tell you how many of what item is required to activate a companion no longer appeared. I am still able to choose a companion but once in the game it isn't clear in the game anymore either how many of the item is needed to activate companion. sometimes when I clear some of that item the progress bar moves and sometimes it doesn't move. So I never know if it is even worth it to select a companion for the level since what is required to activate seems random and inconsistent.
I'm on level 2609 if that makes a difference but it has been the last bunch of levels that it has been acting this way and maybe for a week or 2 now?