When I choose hotel shipping, why does the hotel information disappear from the checkout page?

This happens because your shipping selection is not set correctly and you changed the “Ship to a Different Address” checkbox. The solution is to uncheck that box, then go to the right side of the screen (on mobile, you scroll down) and choose your shipping option. If you choose hotel shipping, there should now be extra questions on the page about your hotel information. You will not change the “Shipping Details” section or the checkbox again.