I have a one country Eurail pass for Germany. This pass covers Railjet trains from Germany to Verona.
I have successfully added a journey from München to Verona (RJ87 Railjet). It says a supplement is needed. But when I try to make a seat reservation (which includes the supplement) it won’t let me and it says “ One or more Passes don't cover this journey”.
Why does the Eurail App (and also the website) tell me that the journey isn’t covered? (The One country Germany pass explicitly covers RJ trains to Verona)
How can I pay the supplement and make a seat reservation?
