updated zwift today & now the difficulty slider does not work, it seems to be set at the lowest setting, using a watt baike atom 7 connecting via a pc over blue tooth
Start here: Guidelines for Seeking Support on the Forum
I’d suggest unpairing the bike and all sensors and re-pairing, ensuring no other device is attempting to connect to them - it sounds a bit like something is attempting to connect to your bike as a Controllable Trainer.