Synapse 2 bugs - func key profile switching stops working, selected profile forgotten on sleep

I've had 5 Blade Stealths now, all of them with faulty hardware in some way.

All of them have also had exactly the same bugs with the Synapse 2 software - every few weeks, the function key shortcuts to switch Synapse profiles will just stop working. This happens without any third party software being installed.

Is there a way to fix this without reinstalling or restarting? Restart a background process?

Also, if I'm on battery and I set a battery-friendly profile, when I sleep and wake the device, it always goes back to a different profile, not the one I chose.

Is there a way to fix this and have it remember the last profile you selected even after waking from sleep?

Thanks