This is a visual bug that shows water breathing bubbles when under Lava. The same thing happens when suffocating in a block. (Ie, sand, gravel). I searched and did not find any reports that stated the same, only one with a fire resistance potion. I am a relatively new PE player, and so I have not played any other versions. I would think that this is a cause of the aquatic update. I have only played on Xbox. And did not experience it on there.

Thank you, please fix this.