I was exporting from LastPass to 1Password by the following methods:
The import process works smoothly for both and my logins / passwords are all imported. The only problem I see is that the the credit card expiration dates don't get imported into LastPass. I can see the expiration date does get exported in the CSV and its all dumped into a "Notes" column. Perhaps that's not getting read by 1Password?
1Password Version: Not Provided
Extension Version: Not Provided
OS Version: Not Provided
Sync Type: Not Provided