Hello @skyglitter, thanks for letting us know about these issues!
When signing up on the forum, did 1Password for Android fill the username and password field, just not the confirm password field? If so, this may be related to a filling bug with 1Password 8 for Android and not a sync issue.
In regards to items on your PC not syncing across your account, I'd like to ask you to create a diagnostics report from your PC:
Attach the diagnostics to an email message addressed to support+forum@1password.com
.
With your email please include:
You should receive an automated reply from our BitBot assistant with a Support ID number. Please post that number here. Thanks again!
ref: dev/core/core#16684