The Bug
Arrows can sometimes desynchronize when shot in the water, causing the arrow to move a few blocks while moving downwards.
See the video attached for a visual description.
Steps to Reproduce
Go into a large body of water, and obtain a bow.
Charge the bow to the maximum and aim around the middle of your screen.
Observed Results
The arrow moves in the correct position for a few seconds before moving forward a few blocks.
Expected Results
Arrows would not desync when shot in the water and would continue on the expected trajectory.
Can confirm.