I have a Motu Hybrid Mk3, since the day one they appeared.
In the beginning there were some issues, the PC didn’t saw the Motu, there were some scratching noises, but since a while all these issues were solved in the updates.
So you should check if you have the latest firmware on the Motu, not just the latest CueFx program.
It is a bit hot, but nowhere egg cooking hot.