The region 'ap-southeast-4' 'ap-south-2' 'eu-south-2' 'eu-central-2' can't be accessed at present.
https://issues.redhat.com/browse/DPP-11358
AWS support ticket https://support.console.aws.amazon.com/support/home?region=us-east-1#/case/?displayId=11037869431&language=en