All my Routes and Locos (except those that came with the TSW3 Standart Edition) are labeled as „New“ even though i own them for several months and used them all. Is there any way to fix this?
Nope. DTG have been silent on this as well. None of them are even new, unless you've only had them 1-2 months. Anything after that wouldn't be "new", at least in my eyes.