Question [HeightMap] Wired bugs? Unable to render Heightmap depth using MinMax

Hi all,

I was trying to create a depth/mountain from a image using HDRP/Lit shader's HeightMap.

It seems did not render the 3D depth of depth map from the heightmap. I tried to control MinMax via Script or Animator. The value was changing. But nothing render on both game view or editor.

However, once I hand toggled the HeightMap group's value from the Inspector, the depth will be updated once and then stop update.

The whole shader expect heightmap is controllable and able to preview in realtime(as expected)

I tried in 2019.2, 2019.1, no luck.
It works fine when I was using Unity 2018.

Anyone have same experience of this kind of issue?
Any solution?