DR Fails with ERROR: start_copy_region(n2wsoftware\cpmserver\cpm\dr_ami.py:282) AMI DR copy_image failed from region "regionname1" to region "regionname2". AMI ami-xxxxxxxx, policy "policyname" (in "accountname" account). Exception You are not authorized to perform this operation.

DR Fails with ERROR: start_copy_region(n2wsoftware\cpmserver\cpm\dr_ami.py:282) AMI DR copy_image failed from region "regionname1" to region "regionname2". AMI ami-xxxxxxxx, policy "policyname" (in "accountname" account). Exception You are not authorized to perform this operation.

This is caused by the "CopyImage" permission missing from your IAM policy.
As a result, CPM fails to copy the image and try again after the next backup completes.