Hey @mram, sorry to hear about the filling issues on the Portland General Electric company site. I took a look at the site and unfortunately, 1Password does not fill the password field for me either. It appears that there's an issue with how the password field is coded. It's something that I would like to report to our developers so that they can investigate further and look for a fix.
For now, my best recommendation is to copy/paste or drag/drop from your login item to the password field. We have a guide here on how to drag/drop from the extension to apps. It's the same steps to drag/drop to fields on sites in your browser: https://support.1password.com/getting-started-browser/#use-drag-and-drop-to-fill-in-apps
I hope that this helps for the time being. Let us know if you have any other questions!
ref: dev/core/core#12584