Autofill has stopped working, which it does from time to time.

I've been using 1Password on several devices successfully for a couple of years. Lately, Autofill on my Windows 10 on PC with Chrome has stopped working, which it does from time to time. I've used it successfully several times today, on several websites, then it suddenly stopped working. It does this from time to time. I go through the usual steps of visiting the 1Password.com website, logging in, then out, then in, disabling the extension, then re-enabling it, and it works for a while. Later in the day, for no reason, it no longer works, even on sites it worked on earlier today. Whereas earlier in the day, click on a website's username field prompted 1Password to show my logins (sometimes, more than one account - mine and my wife's), I picked one, and logged in fine. Later, this failed on the same website - I have to resort to popping up the extension, copying the username and password, etc., and pasting it.
This have been happening fairly frequently, and I'm not logging out of 1Password, or my PC, or anything unusual.

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