The watch get stuck in restarting and I need to hard reset some sensors seem to have updated but the main version is still 16.17
as other have noted, my 17.24 installed very quickly my older betas, however (at least the first of version 17.XX) took a long time to install so much that i thought i had bricked my watch. thankfully, i read on the beta forum that this was a possibility so i patiently waited and it turned out fine.
mine got stuck on "Restarting..." for like 10 minutes too - hard powered it off, turned it back on, install wouldn't run anymore but watch booted. Plugged into Garmin Express and the computer which said "no updates" but when I unplugged it, it updated like it should have the first time.