@hammondj I was able to replicate the issue you're seeing with the credit card suggestions on https://www.cibconline.cibc.com. The good news is that it looks like saving a new login for the website allows 1Password to capture the credit card number into a custom field and fill it on the website.
To save a new login for the website, please follow the steps here: https://support.1password.com/save-login-manually/
Here's a screenshot of the login with the custom field highlighted: https://share.cleanshot.com/ClrefJ
Here's a video of how the filling works from the password field: https://share.cleanshot.com/9OSGt7
You can delete your old login for that website from your vault and use the new one going forward. Please just note you'll have to fill from the password field to get your login to fill.
In the meantime, I've reported the issue on this website to our developers. Hopefully there will be a better solution for this in the future.
ref: dev/core/core#18322
