@simonlee's probably right but I'd check those dimensions with a tape measure first.

Did your friend try updating the firmware before giving up on it?

Yeah, "healthy skin with clear pores" is the only real goal anyway.

Honestly, your mom's advice is overrated. I dump the whole bag in every single time and they turn out fine. You just need to crank the oven way hotter than the package says, like 425 instead of 400, and flip them halfway. The soggy batch probably needed more time, not more space.