I have what seems to be same issue on the x axis.
Assembled the printer this weekend and ran calibration for first time. The x travels in only one direction. On bed calibration, It goes through 1-2-3 on the x then up 4-5 on y as expected but then fails to go back on the x for 6-7, travels down on y for 8, and then travels off the bed for 9.
Will look into the bracket reset posted above.