Lots of bugs

When I go to play Minecraft on my Nintendo switch, first it tells me every time I need to sign in of my Microsoft account which needs to be fixed and keep me signed in because it annoying, second everytime I load or create a world it take way to long to load up and when it does, it gives me a black screen then goes into the game. Also texture packs are having issues as well for me, i went to play a texture pack and I decided to go back to the original Minecraft texture and when I do, some textures are Minecraft texture and some are still the texture pack ones. Also It says I have an update to the texture packs but when I try to update it, I click on it and it does nothing. Lots of issues with my Nintendo switch that needs to be fixed.