Went for a ride. Earned enough drops to get some Zipp 808’s. Finished ride & successfully saved it, bought the 808s which were shown on the bike. Logged off. When I logged back in there were no 808s on my bike and the drops for the last ride had disapperaed leaving my total the same as before the last ride.
Same issue happened to me after alpe du zwift ride almost 400,000 drops lost!