How do you correctly reprogram the edge to recognize a new tire size?

I tried updating the tire size to 2545 through the create a custom program menu for level 2 and then reflashed the truck. But when I check the menu again the edge keeps changing it back to 2457.

I even tried to update the tire size through the lightning software via the custom options editor and wrote the program to the edge and it still didn't work. No matter what I do, it seems to revert back to 2457.

Being almost 100mm off throws off my IMPG reading and my MPH...please help me figure out...what am I doing wrong?

 

I just looked a mine and it is the same. After your truck is progarmmed all the custom options show the defaults if you go an look at them. You tire size is changed it just looks as if it isn't.