As jford mentioned, introduction of the WAS driver is one of the big differences between BIAB 2017 and 2018.

There have been a number of instances on these forums where that driver has not been friendly with some computer systems. This is why I recommended setting RB's audio driver to MME after installing 2018. It's the best starting place. If it works with MME, then try ASIO and WAS and see how they go.

Good luck!
Noel


MY SONGS...
Audiophile BIAB 2025