from buzz
Teamviewer changed things since Android 8
They require the OEM/Manufacturer to pay them yearly to allow Remote Control Access to work
or
The person trying to do the remote access is using a Paid Teamviewer account.
Buzz had a meeting with Teamviewer this week though, trying to work out a deal to make Remote Access work on their new models.
Will update everyone once it is added + working.
It will require an OTA update to make it work.