Your comments

Thanks, Ben.  Here goes:

1. Yes, using a Nexus 6P to host.  The screen is blank after connecting.

2. 6.2.12963.6312

3. Android O Beta. 8.0.0

4. Yes...persists across all guests and connections.

On my Nexus 7 tablet, running Android 6.0.1 I'm able to connect fine.

Thanks again!

I'm having this same issue, unfortunately, and it's persisted even through the most recent update.  Using a Nexus 6P.