This issue is related with the lag when the game autosaves, and with the infinite loading bar. However, I don't see any report about this specific problem.

The Nintendo Switch version generates (for no reason) a HUGE amount of saved data, even when you have nothing in your game, literally, NOTHING. I have erased my saved data twice because of this. The first time, it reached 1.8GB, while Super Smash Bros (the other one with the biggest saved data) had 326MB.

This time, I have done nothing in my game: no worlds, no texture packs, no skins, nothing at all, just linked my Microsoft account. I am only playing in a realm, which is not supposed to generate local data. And even with all of this, I have 577MB of saved data. And I mean, why? If it stayed there then it wouldn't be a problem, but it increases for anything you do.

I am reporting this because this seems to be the main problem of so much more that the Switch version has. Plus, I also compared it with my Xbox One version, and the difference is huge (the images are below).

Update: Now the saved data is 964MB. Only downloaded 3 texture packs. Almost a gigabyte because of some of them?