It was windows. I uninstalled them, rebooted the system, plugged them back in and nothing. Windows would install drivers, but the drivers weren’t being recognised by windows or msfs.
Finally after 2 hours of unplugging, rebooting, msfs finally recognised them. Yet Windows still doesn’t.
I installed the Logitech G Hub, It was after installing that, that the pedals started working again. Though it may have been just a coincidence?
So my advice to anyone that gets a windows notification, about new Saitek drivers available.
Do Not install them!