Users receiving invite links to the Fieldwork group could join and post fine on mobile, but on desktop the invite link didn't open, the group didn't appear in their Groups list, and search couldn't find it either. Turns out a large Firefox cache was the culprit, clearing it fixed things.
  • The invite link didn't open correctly in Firefox
  • The group doesn't appear in the Groups list or search after joining via mobile
  • Microsoft Edge worked fine without any cache clearing needed
  • Firefox required deleting 400+ MB of cached files before the group showed up (though most users wouldn't know to do this)