When you play water in a leaf, it won't make the water placement sound as it would on other solid blocks. I have not tested this on other transparent blocks, so far, I have experienced this on leaf blocks.
MCPE-48131
Water Sound Effect Does not Play
Resolved
Duplicate
0
Thank you for your report!
We're actually already tracking this issue at MCPE-46278, so we will resolve and link this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket 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.