I'm having something similar happen to me. I've been playing Ark on Xbox for about 3 years, all single player, with pretty minimal crashing issues until last night.
I got stuck between a glitchy Rex and a wall so I used the "ghost" code to get unstuck but I fell through the world and had to hard boot to get things back in order. Now the game crashes back to the home screen every 20 minutes but only on Scorched Earth (which is the map I was on when I had to use the ghost code). Every other map works as well as Ark works, just like it has for the last three years.
I have a feeling I somehow corrupted the save on my Scorched Earth game. Is there a way to revert to an old save or clear data without wiping structures and tames? Like I said I've been playing for three years and really enjoy the building aspects of this game, I'd hate to start from scratch. I'm already pretty frustrated with paying for a product that's so glitchy. Good thing this game is awesome when it works