As you may already know the Minecraft Worlds begin to act weird if the player travels too far away from the world spawn point.

This includes many issues like inability to move at slow speeds, mobs falling through blocks, improper texture rendering, and the stripe lands.

Complete list:

https://minecraft.gamepedia.com/Bedrock_Edition_distance_effects

However, these issues occur only if the player travels REALLY FAR AWAY....so its not really a problem.

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But the camera begins to jitter only after X-1,000,000 or Z-1,000,000 and it gets even more insane if you travel even far away.

This distance, X/Z 1,000,000 is possible to reach, even in survival.

If possible, I would like to see it fixed soon.

How to Reproduce this bug:

Teleport to 

X: 1,000,000 or beyond

Try to Sneak or walk Sideways

Observe the camera jitter.

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SUGGESTION:

It may be too lengthy to fix it....

So, as a temporary patch, you can have a world border over there, or make the game warn the player about the issues of these far away places.