USRA 2-8-8-2 Cab lettering issue

I have edited the "number_c" to a Southern Railway cab roadname. It works well with all of Dick's USRA locomotives except the 2-8-8-2. When I setup the default number to be "40154015c4015" it placed the cab roadname on the tender. I was able to edit the tender but I can't get the cab roadname to display (see photos). I manually set the tender to "xxxx4015x4015" which works. The parts A&B of the locomotive are manually set to "40154015c4105". All the numbers display correctly but the "c" Southern roadname doesn't display.