Audio Rendering inoperative on YouTube after using Dorico

YouTube does not work whilst using and after using Dorico:
I have found it’s the VST not ending the Task in the Task Manager!
Can this be recitified?

It sounds as if your Dorico sound driver is set to take exclusive control of your sound card.
Check Device Setup in the Edit menu and take a look at the Device Control Panel there.

Derrek is right, untick in the audio driver Control Panel the option at the top of that window saying something about allowing host applications to take exclusive access.

Thank you both for your quick response. I’ll give it a try.