On a route I have been working on a year got all the ties buried. I tried several other DLC routes and they also have the problem. UMR2022 is one of them. After playing around I discovered I could fix it with a different ballast texture. Ties went under and signals are lower than normal. I now have 3 hours in to changing the ballast. Very aggravating, good thing I love Trainz.
Happy Anniversary N3V!