When playing split screen, a bug often appears where a player opens the world and ends up at spawn with no inventory, and no ender chest either. This bug can be fixed sometimes by shutting down the Xbox and turning it back on after 3 to 5 minutes. I’ve found that data packs do not effect this bug, but have not found a way to replicate this bug... all I know is that it seems to be linked to inadvertent shutdown of the Xbox. I’ll update everybody as I learn more.