Ah

Dreilandentrein doesn't work well

SHOCK!

https://www.aachener-zeitung.de/lokales/region-aachen/aachen/dreilaenderzug-kommt-nicht-ins-rollen-re18-laesst-fahrgaeste-am-bahnsteig-stehen/30619188.html

(The whole development of this has been a saga, and is mostly the fault of the Belgians. Everyone was too busy crowing that it runs in three countries and couldn't fix the operational and ticketing dysfunction)

#CrossBorderRail

Dreiländerzug kommt nicht ins Rollen: RE18 lässt Fahrgäste am Bahnsteig stehen

Ausfallende Züge, schlechte Kommunikation: Der RE18 war als Leuchtturmprojekt für die Dreiländerregion gestartet, hat mittlerweile aber das Vertrauen der Pendler verspielt. Gibt es noch eine Zukunft für die Verbindung?

Aachener Zeitung
@jon I travel on the RE18 between Maastricht and Herzogenrath once every few months and unfortunately recognise this too. Reliability was never great but got worse since it officially became a "drielandentrein."
@jon My last experience was 1,5 weeks ago (27-12). RE18 was cancelled and replaced by two trains with an extra change in Heerlen the evening before. On the morning itself the Maastricht-Heerlen train was also cancelled and replaced by a bus that arrived too late to connect to the train to Aachen, forcing me to take an earlier train to Heerlen. Of course, no info at all was provided on the train about how to get to Herzogenrath/Aachen, presumably leaving less-experienced travellers in the dark.