Unable to receive email using Amazon Work Email but can send

I am attempting to receive email for example ceo@abc.com but emails never arrive even when replying to one sent from that address.

I can send emails fine but do not receive any bounce messages or errors. Nothing ever arrives. Exisitng answers did not resolve my issue.

Even I have MX Records in light sail, Please provide concise information with steps

please Amazon expert deep down to my account to get the solution

Please review my accounts to fix this issue or provide correct solution

Thanks