No water surface

What this problem is related to? (e.g. Broken model or texture / Incorrectly placed model / Particle Effect / Animation / Collision problem / etc. ): Water surface not displaying.

Can you reproduce the problem? (if relevant): Yes, have it always, even after restart.

Screenshots/Videos (if available):

So looks like the water disappears if you turn off the shadows in the graphics settings. And becomes buggy if your shadows are set to ‘normal’.