I don’t know if this has been anounced yet. I’m sorry if it has.
Many people experience the situation that friends on Waze don’t show on their dashboard. User trevjans has found out this can be solved by disconnecting and subsequently connecting to facebook on the dashboard.
I know, it’s no real solution but only a workaround. But it’s better than nothing!
I suspect you might need to go on the “wrong” server and connect your id with your fb account. I was connected on www but not on world. I am on both now.
For the record: I was one of the first dutch users to connect Waze to my facebook account. I did that from my phone. I have never had any problem seeing other friends, both in the client and the scoreboard.
In addition I can tell you that I always log into the world server. The only times that I use the www server is when checking the blog or north american permalinks from the forum. In both cases I try to turn back to the world server asap by using the back button in my browser.