Downgrading to 1Passsword 7 again - 1Password 8 filling in with wrong credentials

@Raghos

There was a bug a good while back where an item would get accidentally linked to the browser. This could cause behavior like you've experienced. Based on what you've said, I would look within your items for a linked browser. Once you remove that link, the behavior should stop. It would appear similar to this Mac linked app but would show the browser icon. Don't remove needed linkings. It will likely be evident when you see it. I typically saw this with Chrome. But it could have been any browser.