Xur is supposed to be on io in that cave area as far as i can see, and when i get to that area xur just isnt there.
Hello BladedMitten620. Xur has left for the weekend. (He leaves at the Tuesday weekly reset.) Xur will be back at another location on Friday.
Xur is available beginning each Friday at daily reset, and departs the following Tuesday at daily reset. In other words, he left about 7 hours ago.