I was playing last night, and the minimap was there as always.
Today when I went back, cuz I unlocked a new starting location, the beach, the minimap does not appear.
I exited, started over, rebooted the Xbox One X, did everything short of uninstall/reinstall.
Other missions in HM2 render the minimap without error. Just Hawke’s Bay now that I unlocked the new location.
Smells like a bug to me!