Offline map shows invalid position when using GPS

I had created map of my city some time ago using Mobile Atlas Creator. Everything worked great (offline maps + gps positioning), until I recreated map (I selected largear area) and replaced previous map files with new one (sqlite db file and xml file). Now when i try to find my position using gps oruxmaps points completly wronk place on map. Do I have to calibrate new map?

i have not ever had to recalibrate a mobac map.
dont know what went wrong for you? i do know one thing when you re-make a mobac "atlas" it creates an entirely new folder with that new item in it. could it be that you mixed something?
Because a new map is made from "disk" and so it would not take a really long time to re-download it. I would delete that map and make sure it and its coresponding XML are gone from both the small machine and the big one, confirm that it is certannly gone. then remake the map, and move it over again.

other things i can think of , does it possibly have "missing tiles" in some corner that might be nessisary for calibrations?
i do not know if that would effect it, but i am wondering myself if it could.

Ok, I fixed problem. I refreshed maps database (option available in OruxMaps's main screen).