Dashboard is not allowing us to re-queue the job

We have implemented Hangfire in DEV and QA environments without any issues, however we are having issues in UAT.
when I click on requeue button, its not working and also when I click on task id I am getting below error.
404 - File or directory not found.
The resource you are looking for might have been removed, had its name changed, or is temporarily unavailable.

we need to move to production now, please let me know if I am missing anything