Started playing again after a hiatus. Last night I was trying to open up more of the Parque Fernando map and tried to claim an outpost but when I hit the X to claim it, the prompt disappeared but the outpost icon stayed green. Decided to stop playing for the night. Today I loaded up and decided to start the Rancho del Arroyo map for the first time. I can't claim the starting outpost there. No prompt at all.
#UPDATE: The map shows the outpost is claimed. ~~Can't claim outposts.~~ [Xbox Series X]
inland stratus
UPDATE: The map shows the outpost is claimed. Can't claim outposts. [Xbox Series X]