The menu was scintillation when I saved the world.

Not only this, but also sometimes happen when I enter the worlds, just like that video.

Those maybe have some grammar error, I so sorry.
It should be "That has happen from 1.5.0.0 to 1.5.0.4".

Thank you for your report!
However, this issue has been closed as a Duplicate of MCPE-30782.

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