Custom height control input not showing up on Unity import

Certainly. Here's the full graph:

Here's the focus on the affected area; the point of the height slider is to adjust the value of the grayscale colors blended to the heightmap, above or below a defined default value:

Here's the custom input values I defined in the Designer project, and the ones that are seen in Unity:

Hello,

In order to tell whether the issue is related to your material or the Unity plugin, please share the graph for your material. In particular, let me know what the float slider specifically controls in the graph.

Best regards.