Looks like the partly submerged camera inside a glass box didn't work (see updated test image).

Thinking about it, it's not surprising because the water plane continues inside the box.

With water inside the camera container the situation hasn't changed, it will have to be removed first using an external mesh editor. That means quite a bit of work to neatly repair the boundary of the water mesh to seamlessly meet the contours of the camera container.

Nothing to be done about it.

Cheers!