Now that I've been notified by other project members that their haplogroup change, finally updated to the current build, I noticed that many of my project members who were in the same haplogroup split off to various haplogroups. From what I can tell, those who were in the same haplogroup were not necessarily matches to each other while those that were moved into the new haplogroup together. And yet 2 moved into the new haplogroup and are not a match to each other. I wonder if that will change eventually too in the future.