Seems like a recent update has caused the project header’s to mask the Customize menu pane, resulting in hiding the back button and instead keeping the Filter, Sort, Group buttons etc on top of the pane:
Tested and observed in several Asana spaces and particularly in the List view, not the Board view, for example. Not all projects in all Asana spaces I have access to have it - could be a particular flag.
Pinging the @Forum-team top escalate as a critical bug
PS: the Portfolio’s Customize menu appears to be fine.
