waves/ water is very glitchy during rise/fall

I have a lake that is using Water4 pro advanced, and when im ingame, the rising and falling of the waves is very glitchy from some angles, and not from others. what is going on? am i missing something? i seriously cannot figure it out

this video shows both the glitch and the water running smoothly. there is no framerate drop or difference in the game,just how the water is rendered.

Edit: Sorry i had it embedded but i guess they didnt want to keep that. heres the link to the video

Water Glitch