It’s not uncommon, it’s like Alpine brought their new floor for one car first and then the other for the next week. Mostly due to production taking a long time or testing if it even works. I’m speculating the reason they’re giving it to Lance first is because Seb is able to pull in a better result with the worse car than he would be.Is this normal? I guess it’s to test the new updates with the old car but obviously Vettel fans aren’t happy