No audio when scrubbing

I get no audio when I scrub in the project or in the editor. I used to be able to do this all the time.

I have 10.0.6. I have downloaded 10.5.2 but not installed as I cant take the chance of things getting weird in the middle of a project working from home. Any Ideas. Thanks.

Are you using control room? Not sure but is scrubbing routed through preview buss? The preview buss might be routed to the headphones instead of stereo out or vice versa.

Man…you are the man, how did that get checked. I owe you.