Hi there. Sorry for your troubles.
First thing to try would be to open the map in AccessTUNER, verify the tune, and then save that map with a unique name. Transfer the map to the AccessPORT and then make sure you select the "reflash" function when you change maps, rather than real-time. That will eliminate any reflash vs. real-time discrepancy that may be the cause of a fuel cut or throttle cut limiter coming into play. Examples would be if you realtime flashed your "correct" map but did not reflash it and your reflash map did not have the requested torque torque changes necessary to remove the limiter. Or if, for example, the rev limiter in real-time was inadvertently changed. Reflashing will also clear the LC/FFS thresholds in real-time. Even though they may be disabled in your map, the AccessPORT can override the thresholds when adjusting via the Tune - Adjustments menu.
Give that a go and let me know if that works or not.
Bill