Water plugin work incorrectly with Forward Render (VR)

Why, starting with version 5.4 (5.5, 5.6), does the built-in Water plugin crash or work incorrectly when Forward Rendering is enabled? In particular, in the VR mode.

Even in Deffered Rendering Water plugin looks fine in editor, but not visible in VR.
In 5.3.2 Water plugin works correctly in VR with Forward Rendering.
Why can’t you fix it for over a year?