I just bought an international round-trip with Flixbus. 2 legs outwards, and 2 legs returning. I paid to reserve a seat on the longest 2 legs (one outward, one return). The ticket shows that I got assigned a seat on only one of the two legs I didn't reserve a seat for, meaning that out of the 4 buses I will take, one (the first) officially does not have a seat assigned to me.
This is my first time taking Flixbus, so I am a bit confused. In their confirmation page, they say to go to the seat shown on the ticket, but there isn't one.
I also tried going in the "manage my booking" page and pay to reserve a seat on that leg, but if I try to do that, the system cancels my reservation for the second leg, and I don't want that.
Is the lack of a seat number an issue? if so, can it be rectified? I don't know if it is a coincidence, but it is the only leg that does not cross an international border.
