Through blocks, bubles can appear as in the water.
MCPE-40594
Bug with underwater magma and bubles from magma. Just look on the screens.
Resolved
Works As Intended
0
Thank you for your report!
However, this issue has been closed as a Working as Intended.
https://minecraft.gamepedia.com/Bubble_Column
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – 📖 Game Wiki