First, a word on Synapse. I've filed several reports about difficult websites there, but have never received a "bug fixed" email. So I feel the system is not good. Hopefully you can solve issue better in here forums:
One significant issue is in Gearbest.com , login page: https://login.gearbest.com/m-users-a-sign.htm?type=1
If you use login filling, 1Password fills the sign up form. Is this possible to fix?
1Password Version: Not Provided
Extension Version: Not Provided
OS Version: Not Provided
Sync Type: Not Provided