There’s a curious thing happening here with Fortnite’s first drop of Fortbyte challenges, here on the first day of Season 9. The majority are very straightforward and serve mostly to set some long term goals for moving through the season: gaining experiences and placing highly in battle royale modes, mostly. One requires you to equip the sentinel skin and go hunting: you can read about how to do that one here. There is one on this list, however, that appears to present a bit of a problem: Fortbyte 13, found at a hidden location within loading screen #2. Read on for Map, guide and location.
Technically this challenge is available because it’s listed there on the screen. But I haven’t seen any evidence yet that it’s can actually be completed. this would appear to be the evolution of the classic “find the hidden banner/star in the loading screen” challenges, but typically those can’t be completed until you’ve actually unlocked the loading screen by completing challenges. But while we won’t be able to see loading screen #2 until next week, we can actually collect it now.
Of course, thanks to dataminers we can get an early look at the loading screen. Here it is, courtesy of Lucas7Yoshi:

Pretty hard to figure this, actually. The most prominent clue seems to be the number 37 on the sleeve of that guy in the front, but it’s difficult to know what to do with that. Many other loading screens hide their locations with coordinates or a weird little visual hint, but I don’t see either of those things in this one: it’s nearly impossible to tell where it takes place, as well. Regardless, we do know where to go to get this thing. Here’s a map:

You’re looking for the group of dinosaurs from a challenge from last season. Behind them is a house, and behind that house in a port-a-potty. You won’t actually see the Fortbyte on the ground, but you can interact with this port-a-potty to collect it. Here’s what it looks like:

And that will get you your Fortbyte. Check back for more as they’re made available.