Game crashes when trying to move after login.

World was working. Saved and logged out. Upon logging back in the game loads fine. You can jump, look around, even pull up inventory / crafting menu, break objects. But the second you take a step the game crashes and indicates "The software was closed because an error occured." I have attempted to restart the nintendo switch. Removed and replaced the game cartridge. Nothing has made it so that I can move from the location I was when I logged out. It is a single player world. I am inside my base. There isn't an over abundance of mobs or anything that should be creating memory issues. I do have some Redstone but nothing super intense that should be causing the game to crash.