This just happened to my cousin on the Xbox One.
He was hosting the game, and the server didn't crash, but he sat there for 5 minutes and it never loaded the overworld.
It also happened to me in the Switch version just now...
Hey sorry for the late reply... was not expecting one so soon. As for the crash report, I reinstalled windows, which fixed my problem, and got rid of the reports... I'm so sorry for the waste of your time. DX
I found out the problem, my keyboard was plugged into a USB2.0 slot, not a USB3.0 (the blue ones). If you have this problem, its not minecraft its that your keyboard needs a different type of USB socket to work with