I've got a Vienna-Munich ticket booked on an OBB RailJet service. The ticket is booked Wien Hbf -> Munich, but it turns out that my lodging is much closer to Meidling than it is to the Hauptbahnhof in Vienna. The train has scheduled stops at both Vienna stations: for westbound service it calls at Hbf then ~8 minutes later @ Meidling.

If I show up to board in Meidling rather than Hbf, is this at all likely to cause any problems? If this were a US based airline they would immediately cancel my entire ticket, probably fine me 100 EUR for the inconvenience to them, and then maybe have me met by the transit police. But that's why I'm taking the train instead of flying. ;-)

I'm assuming the answer to question is "No issues at all. Most likely no one will even notice, and if they do they will not care". But I'm also experienced enough to know that checking assumptions like this makes for more pleasant travels...