Through water you can see the slime or banner as if you were to be in front of them.
MCPE-152339
There is a bug where the slime creature and the banners are seen normal through water.
Resolved
Duplicate
0
Thank you for your report!
We're tracking this issue in MCPE-150000 and MCPE-130262, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main tickets it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki