I see an empty window often when opening the Chrome widget in 1Password X. This also happens when I try to view the settings.
I went into developer mode and see all kinds of js errors related to null objects.
This is a new install of 1Password X that worked in Chrome 61.0.3163.100
1Password Version: X 1.0.1
Extension Version: Not Provided
OS Version: OS 10.12.6
Sync Type: Not Provided