MGM 16018 auto-tuning problem

[Just go Play]

David heres a couple of things you can try if you have not done so already.

Try reseting the controller to default settings using the default button in software.
Try programming autotune mode from the controller instead of from the software.
For neutral range I use default of 12 but you can try a lower number to limit deadband.

As for the long beep you get when trying to write data I think that is warning that the programming is corrupt and requires reset to default settings before you can make any additional changes.