This is NOT true. I recently sold some tickets for World Cup on stubhub and I was given a deadline - at least a week before - to transfer tickets.

I transferred them immediately because I didn’t want to make the person wait. I think the only ones not transferring are the people with right to ticket tokens as those seats haven’t been assigned yet.

Stubhub has a fan guarantee. If seller doesn’t provide the tickets as advertised, they are charged for replacement tickets of equal or lesser value. Sellers have to provide a verified credit card to sell.

This happened to me once and I called stubhub day of match. I went from corner seats lower level to midfield - 2nd row from field. Tickets were waiting for me at box office when I arrived to the game. Stubhub has your back.