This was listed in the community created wiki first bug reports last night.
http://thingsthataresmart.wiki/index.php?title=Bug:_First_Reports
It’s affecting people on both android and iOS and there are several existing threads discussing it.
People on android seem to be able to get rid of the bug by updating to version 2.2.3 of the mobile app. I haven’t heard of a fix for iOS yet, but see the following thread: