Flickering Water

[cruxifo]

After downloading this project I found the water 'flickers' - each frame a random 5% of the surface decides to be transparent. Still image attached - every second looks like that but with different bits missing.

The project is exactly as downloaded, running on a sturdy and up-to-date macbook pro.

[AlaskaMirabeau]

probably a bit late to help you, but maybe this helps someone else one day...
the transparent patches are due to NaN after the Power nodes when creating the sine waves.
Adding a clamp node before the Power and then anisNaN node after will fix it, i'm not sure why both are needed...