I have one Ubuntu 18.04.6 LTS EC2 Instance having Graviton2 arm64 Architecture. I have also enabled encryption on EBS volume.
I configured some cronjob bash script.
I was able to run those script manually by ./backup-script.sh command.
But when configured cron job below.
0 4 * * * /bin/sh /path/to/script/backup-script.sh
It is not able to execute.
I have other EC2 instances where cron job is running successfully but those are not graviton2 based instance neither EBS encryption enabled on them.