Artifacts showing up in panorama renders

I am getting werid green shapes/artifacts and some black when rendering a panorama.
The green happens on glass only.

What is causing this??

It looks like the green colour is the base colour of the water. those artifacts show up as whatever hte base colour is changed to.

Hello, please join our Discord server and try the new beta version of D5 Render, which fixes this problem. Or you could wait a few weeks for our release of D5 2.2.1.
D5 Render