(attached below is a video of the reported issue and a screenshot of my in-game graphics settings)

Placing leaves on top of water creates a weird flickering shadow. I only noticed it under leaves adjacent to other leaves. Attached is an example of birch leaves, but the same issue persists with oak leaves. Reloading my game does not resolve the issue. Breaking adjacent leaves ceases the flickering in only adjacent leaves (and flickering will continue once placed again).