Suspension Warning Light in Comfort Mode

Noticed on a drive today that when I switched the suspension to comfort mode with the car in motion, the warning light came on after a certain time period (about 30 seconds or so). I pulled over, switched off the engine, then restarted the engine. The light extinguished after the test. I switched back to Sport, continued my drive and then some time later switched back to Comfort. The warning light came back on again in Comfort mode shortly afterwards (similar 30 seconds or so). I repeated the above process and the light didn't come back on.

I assume the actuator test on start up should effectively test the actuator circuits. If the problem comes back, should I look somewhere other than the actuators?

Car history:
Replaced a broken metal wheel on the right rear shock
Fitted a new actuator on the left front shock (Thinking of sending the old one to CaptainZ, as a spare, but there are parts other than the cogs broken)

Thanks.
Cheers
Ian.