I'm having issues with the most recent beta. Location and weather updates aren't updating sometimes at all.
I had to manually refresh to get my watch to update its current location and conditions. The watch was still showing last nights location and conditions as of 10 hours ago. The watch never updated since i was halfway home from work last night.
The previous build was working perfectly and I haven't changed the settings at all.
Didn't change anything with regard to how updates are handled, likely just a bug with watchOS. I've seen the same thing happen where complications just stop updating - a restart of the watch fixes it.