[EKS] [Support]: Getting forbidden error during modifying sysctl param in 1.22

I have a requirement to modify sysctl param via one of application running on EKS. I have added all required permission via PSP and also passed --allowed-unsafe-sysctls with required param in my userdata script .
But still getting forbidden error.

Start by reviewing EKS 1.22 sysctl support, the configured PodSecurityPolicy permissions, and the --allowed-unsafe-sysctls setting in the userdata script. Reproduce the forbidden error with the reported setup and compare the required parameter with the effective configuration; done means the application can modify it without the forbidden error.

Written by the indexing model from the issue text.