Cross-region and cross-account DR of an encrypted RDS cluster may fail in v2.6
Encrypted cluster RDS backups (Cross-region & cross-account) DR might fail.
You may see the following in the logs
Error - RDS DR copy snapshot failed for region US East (Ohio), snapshot Snapshotname (to DR account).
Reason: Encrypted source snapshot: arn:aws:rds:us-east-1:123456789:snapshot:Snapshotname cannot be copied because it does not exist in your account
If you encounter this error, please upgrade to the latest 2.X.X version.