Meh, I decided to go ahead and erase all of my devices. I didn’t erase all of my data though. Maybe It will do a better job with detection with recent updates, 7 months of data, and none of the data tied to specific devices.
lol. after I deleted all the devices. it took 2 minutes for 2 devices to be detected. lol.
edit: just looked down. 4 minutes later, 2 more devices detected