When 9000 Series, G, GV2 and GV3 panels are programmed for access and the selected door point is one between 1-8, the extra point issue may occur.
When using an onboard point (1-8) as the protected point programmed to the access control module, remove the end of line resistor from the onboard zone selected as a door point. Clear the trouble with a reboot of the panel by momentarily closing and reopening the panel reset switch.
Another solution is to use a point number 9 or higher to not conflict with an onboard zone.