Hi David,
I apologise, if my postings have been excessive. At this time, I am not in a position to subscribe to UpdraftPlus Premium, but I will certainly exercise more patience, do more research and try all other avenues to solve problems that arise, before I post for support.
I had assumed that the problems with losing the activations on Google Drive, were a carry-over from my earlier server problems, but it appears that they were caused by the Updraft update. Since correcting the problem, which happened at night, I have had more time to read other postings and should have seen earlier postings about issues with Google Drive. I understand that the Updraft update included code changes that affected Google Drive, but am surprised that there was no warning that the Updraft update could precipitate the problem with Google Drive.
The Updraft plug-in is important for my sites and I wish that I was in a better position to contribute. I have always appreciated your fast response, but I am not expecting further support at this time. You may be interested to know that on running manual back-ups I am still having problems with Google Drive on my sub-domain. After a previous successful back-up, the Updraft page again shows: Have not yet obtained an access token from Google - you need to authorise or re-authorise your connection to Google Drive. The log file shows: H2461.164 (4) ERROR: Have not yet obtained an access token from Google (has the user authorised?). The back-up fails. The Google Drive page shows that the API is activated! Returning to the Updraft page and saving again and then clicking: After you have saved your settings (by clicking 'Save Changes' below), then come back here once and click this link to complete authentication with Google, the backup starts and is successful. This situation is annoying, but manageable.
Also since the first problems, on every back-up on both sites, the previous back-up is not deleted and at first I deleted manually. However, I am now waiting to see, if this will correct itself.