Every time you leave water (even if bouncing up and down) while pressing on the screen (to point the direction of travel) the game starts breaking blocks unintentionally.
Samsung S7
Linked issues
duplicates 1
Comments 3
Related to MCPE-30151
Thank you for your report!
However, this issue has been closed as a Duplicate of MCPE-33470.
Please add a vote and any new information to the main ticket, which will be updated accordingly.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Feedback – 📖 Game Wiki
Same. Its SO annoying in creative.