Tbsync losing Google credentials

[saleslogistix]

Using TBsync with Google-4-Tbsync. Everything is running fine, but I've got a new weird symptom that you may have seen with others. It's possible the issue is actually with Google-4-TbSync, rather than your work, but I'm reporting it here.

Your plugin (v 0.7.0 running with Tbsync 4.11 on Tbird 128.6.1esr 64-bit on Win10 build 19045) seems to forget its credentials for all 3 Google accounts I sync, after maybe a week of running normally. It seems to happen during temporary network disruption that happens during windows' suspend (sleep)-resume cycles. I haven't really changed anything in the system or Tbird configuration, but I did remove/replace one of the synchronized accounts. I haven't changed anything in my accounts on Google.

The event log just says authentication failed, and the browser window pops up to do the authentication/authorization to connect. But since all of the accounts fail and the pop ups don't identify which account is the problem, I have to dismiss the pop-ups and handle the issue on a one-by-one basis using your account manager tool.

Thoughts?

What can I do to help troubleshoot? All debugging is enabled, but there's not much interesting there.

[saleslogistix]

It appears as if the problem shows up only when (1) there's been a prior network interruption (causing an authentication failure) and (2) the system is waking up out of sleep/hibernate mode.

If the system hasn't gone to sleep/hibernation, the next time the auto-sync cycle is triggered, tbsync seems to succeed in logging in and completing the sync.

I'm running some tests to see if I can validate this hypothesis.

This issue has only come up over the last month or so, and since you last updated tbsync in October...I suspect this may be caused by some update Windows or Thunderbird has made since then. My system configuration -- hardware and software -- has been stable, other than auto-updates.