Is this correct?

I installed the patch and had a big game crash so I went and checked my Omsi\maps\Berlin-Spandau_89\TTData folder and instead of having the Wro-xxxxx.ttr (I don't know how to put the two dots on top of the "o") it now says Wroe-xxxxxxx.ttr is that how it's supposed to be? did they change the naming of the files? if not how to I change it back so it will work again.
Thanks

The file names have been changed and all "umlauts" have been removed. The crash probably has another reason.