I’m not really sure what to do at this point. Things break, move, change styles, ungroup themselves, reorder themselves. My only piece of advice: do not pin items in mobile view, especially if they’re grouped. My second piece of advice: consider a different site builder. I could’ve learned CSS in the time I spent struggling with this!
Thanks for the DO NOT PIN ITEMS IN MOBILE VIEW!!! that helped alot in trying to fix my websites. Hopefully the team will fix these issues soon enough.