Your Ax relay may need some attention.

Do what Clay does:

It looks like your reels are resetting and that your player unit is advancing to the zero position. The last step is as follows :

“When P5A on the player unit closes, AX and BX relays reset through motor 2C and switches on U, O, and R relays. The reset cycle is now complete.”

P5A is the 1st switch an the 5th cam on the player unit in the backbox. It closes when the player unit reaches its zero or “home” position.