I reported this issue in particular because 1Password didn't work at all after the beta update until I figured out that I have to grant permissions to use it on all websites. I am not sure what the solution would be for this. A notification for the user with an explanation that they have to grant permissions?
Like DanielN, I frequently run into the problem that I have to refresh the page for 1password to autofill passwords but I believe this is a separate unresolved issue. @Vlad shall we open an issue for that with reproducible steps or is it already reported somewhere in the forum?
In any case, I don't want to make this issue a collection of related issues necessarily.