I am inexplicably experiencing this as well. Searching shows that this typically happens when AWS APIs are experiencing increased latencies.
I guess AWS doesn't know about it yet because it's not showing up in its status page.
Burnt an entire morning on this, how annoying they don't know about an issue like this and can't report status on it for hours after it started.
Having the same issue here
The AWS status page now shows a RESOLVED event for this. Will try again.
How long does it take a Reserved Instance to change to Active Stateasked a year ago
CloudFormation says a IAM Role it just created does not existasked a year ago
How to specify subnet with no preference like web interface in a template?asked 3 years ago
EC2 Image Builder: Role does not exist or does not have sufficient permissionsasked 5 months ago
change lambda to no longer use zip deployment packageasked 3 months ago
Can no longer preview running applications - VFS connection does not existAccepted Answerasked 2 years ago
Verify permissions for the IAM roleasked 6 months ago
Workmail no longer workingasked 2 months ago
What are the key differences between IAM roles and IAM policies?Accepted Answerasked a month ago
CloudFormation structuring & splitting of resources between stacksAccepted Answerasked 2 years ago