Bugs when traveling between maps (Switch version)

I am playing the Nintendo Switch version of Don’t Starve, typically selecting RoG with Hamlet compatibility.

First, when traveling between maps (survival, caves, ruins, shipwrecked, hamlet), my game automatically saves even if I have disabled auto save.  This occurs both when I intentionally travel and when I die and regenerate on a different map.

Second, if I close the game after traveling and don’t save again, then open the game and reload that save, the environment reverts to the moment I first left that map (season, rotting, growth, etc). But if I explicitly save and quit after traveling, the time passage effects on the environment are retained.  So the auto-save when traveling appears to not save environmental changes.  Consequently, I can spend a year in the ruins, travel back to the cave, quit without saving, reload, and everything in the cave is unchanged as if time froze in the cave while I was in the ruins.

Third (and worst), the game freezes every time I travel from the caves to the ruins.  Even if I wait for half an hour, the screen is still frozen at the ruins entrance and the bell keeps ringing.  It successfully auto saves, so if I force close the game and reload, it loads there in the ruins.  But I have to close and reload every time I enter the ruins. This problem doesn’t happen when going from ruins to cave or between outside and cave.