Since 1.16.200 there’s been a glitch that makes the game almost unusable on realm (not sure if it’s happening on regular worlds). 

Often, when I interact with something (open my inventory, a door, a chest, or use a crafting table, etc.) a loading bar appears and never goes away.

When this happens I have to close out the game on my switch by clicking the home button and force quitting Minecraft. But when I close out the game it says “the software was closed because an error occurred” instead of just closing. Then I have to restart the entire switch in order for Minecraft to even open. Once I restart it takes several tries to get Minecraft to open without crashing. 

It is not an internet connectivity problem because it happens when I have a great internet connection and when I am connected to different internet connections (ie. At my parent’s house or my grandmother's house).

It is getting really frustrating and makes the game almost unusable.