Hangfire jobs stuck in enqueued list and not processing

Tags: #<Tag:0x00007f066916c238>

Hi Team,
I have been using hangfire with redis cluster(Elastic Cache). After some time, all jobs gets stuck in enqueued state and no processing happens.
After System restart it started processing. I am using hangfire.core with version 1.6.22

Please help me with this issue.
Thanks,
Gheri.