WaterVolume/River Component materil realtime reflection failure

[myth815]

Describe the bug
WaterVolume/River Component materil realtime reflection failure(from 1.16)

Steps to reproduce

1. create new level, add some building or vegetation around
   2.create new entity with WaterVolume/River component.
   3.create new material, select WaterVolume Shader
   4.enable Realtime Reflection in material editor shader generation params
   5.assign material to WaterVolume/River component.

Expected behavior
WaterVolume Component materil realtime reflection like version 1.15

Screenshots/Logs:
enable Realtime Reflection property:

WaterVolume Component materil realtime reflection in lumberyard version 1.19:

WaterVolume Component materil realtime reflection in lumberyard version 1.15:

Lumberyard version
v1.19.0.0 - Build 918128

[jiaweig-amzn]

Thanks for reporting this @myth815. We have grouped it with the previous report.