I have an update to share with you. MG have finally diagnosed the problem as a faulty camera and they have duly placed an order for a new one from China. So it will be some weeks before they take delivery of it and fit it, but it should be an end to the issue, finally!
In their attempts to fix the issue they updated various modules and the latest infortainment update (R33 version 2) has vastly improved sat nav freezes, radio reception stopping, blank energy graph plot, Amazon prime music stopping. I have had no reason to reset the system once since the latest firmware was applied. The ONLY negative is that the initial bootup when you first activate the car takes considerably longer, but if waiting 30 seconds while it boots up is the price for having it working nicely, then i can cope with that.
When the new camera is fitted, i will have to find something else to complain about (like the economy or the youth of today??)
Cheers for now