NvFBC Capture Stream Fails For TigerVnc with Error: Version mismatch between NvFBC and the X driver interface

Hi there,
I have a setup where we are running tigervnc for X server display. on given display port using NvFBC SDK to capture screen frames. while capturing NvFBC SDK giving following error:

Version mismatch between NvFBC and the X driver interface.
(status: 10)

Setup details:
tigervnc -1.13.1
NvFBC SDK - 7.1
OS - RHEL-8.8
GPU - Tesla T4
Nvidia Driver - 535.86.10

whereas when we are able to capture screen using default X server.
This is very critical requirement for my work, Please help ASAP.

Thanks in Advance