Wonder if your integration is working now.
Marketo Support team informed us last week about a patch they were working on, but in the end it seemed that only some instances were touched by it. So no fix for us, yet.
I'm wondering if you were able to get a solution from the Marketo support team? We are working on our integration as well and we are not able to get any of the fields to pass over and/or map to the correct field. Marketo is looking into it as they believe it is an API issue, but if you have any insight, that would be greatly appreciated!
No solution has been found yet for us. For a couple of weeks, Marketo told us that there is another account called "Business Service" associated to the admin person, that causes the sync issue. After discussing with Facebook, we realized that "Business Service" is actually a Facebook TOPIC, and not a page or an account: Business Service | Facebook. Business Service is the Facebook topic chosen for the company Page, as when you create a page on Facebook, you need to chose a topic for it from a list, and "Business Service".
Marketo's engineering team says now it's a Facebook permissions issue. Facebook is trying to identify it, but all seems to be fine there too.
Let's stay in touch.