iCloud passwords stopped working

Hi there,

So I've happily been using iCloud passwords in Chrome on my windows laptop for some time (at least a year).

However a few days ago I clicked to activate the extension & it popped up iCloud for windows & passwords was greyed out & wanted me to re-activate it, did that via code on my phone etc. but it still failed to sync with chrome (even though it seems to think it has, & I can still manually look up passwords by clicking the extension & clicking "manage passwords".

Every time I've tried to use it since, I've had exactly the same issue, it makes me reauthorise passwords on iCloud for windows & then still fails to work. I have noticed it will offer to save passwords (even ones it already knows), once it has been re-authorised.

Since this issue started happening, I've also upgraded to Win11 (though it started happening before this, but only by about a day).

Any ideas?