The 
vending machine is not able to sell tickets over the border from Frankfurt(Oder) to Rzepin. There is no other vending machine nor a ticket counter. So a national 
online ticket from Rzepin to Warszara it is and we will ask the conductor so sell us the international part onboard.
RE: https://zug.network/@lewd/116005483675410844
🇩🇪 🇵🇱 #CrossBorderRail
Trains that get better each year. But ticketing that remains much more messy than it should be!