Elasticsearch not working post migration of OS

I have migrated my Elasticsearch cluster servers from centos7 to RHEL8 , post migration my cluster isn’t picking the hostname, for every server re-build I have to manually edit the hostname and restart the Elasticsearch service, I have checked to generate the enrolment token but it says no such file or directory, can someone please help @Sunile_Manjee

can you please provide log output to help further debug the issue?

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