Update:
Interestingly, when I turned off MESH_BED_LEVELING and enabled AUTO_BED_LEVELING_BILINEAR, I was able to get proper data from the Z probe repeatability test.
Interestingly, when I turned off MESH_BED_LEVELING and enabled AUTO_BED_LEVELING_BILINEAR, I was able to get proper data from the Z probe repeatability test.