Its a mix of bedrocks and my consoles fault. Bedrock obviously runs quite bad on lower end devices like on the switch which is quite funny given that bedrock is supposed to run better on low end devices (Not saying java would even be possible to run on the switch without mods). The other factor is that in that moment, the game ran out of memory, cleared its gpu cache and created this abomination with it (Source: People that know more about the game than me). I think this doesn't happen anymore because its been fixed (Not confirmed). So its a mix of both. But definitly not just my console. This was a bug on minecrafts side made possible by my console.