Hello everyone, I’m traveling on Friday 18.09 from Spiez to Domodossola. I understand there’s construction that morning so trains are limited. I am with my wife and have luggage, so I want to upgrade to 1st class and, if possible, make seat reservations. We have a Swiss Travel Pass for this trip. When I click on Seat Reservation and “Select Seat” on either the website or on the mobile phone app, I get an error like “The available seats cannot be loaded. Please try again.”. Am I doing something wrong?