Another update is out, according to the Steam forums it might help to resolve some of the crashes that this recent DLC introduced.
(Game has been fully stable for me but that doesn't have to mean anything, previous update solved the V.High tessellation setting causing a large performance drop and the one before that I don't remember fully but the Czech localization was improved somewhat.)
So the July 19 trainer works for you?
@Davidpapa111
the latest trainer works with v1.0.0.9 for me
cheers I tested it out