Sport mode will not cause this issue. Aftermarket programming appears to be the culprit. I've never seen P0600 set on a vehicle with a factory tune, regardless of the type of networking issue present. It is not a common DTC. Here is the definition from the Ford PC/ED:
View attachment 143878
It appears that the invalid data originated in the PCM and was then send to other modules, resulting in the DTCs you found. Aftermarket tunes will never be as robust and thoroughly vetted as factory calibrations; they don't have the resources to test the vehicle for tens of thousands of hours under every condition imaginable. Sounds like you exceeded the limitations of the tune parameters with the driving you were doing; I would clear the DTCs and go from there.