Buying Tickets Through StubHub

Has anyone bought tickets for a game this season through StubHub? I bought extra tickets to the Northwestern game for some relatives who are coming and was expecting them to come as a Ticketmaster transfer (similar to how I've bought and sold Penn State tickets through StubHub in the past), but it was a different E-Ticket format that I can't transfer to Ticketmaster or load into Apple Wallet and I'm nervous we won't be able to get them to load at the stadium on game day.

Has anyone used tickets like these purchased through StubHub successfully this season?