Hi,
I’ve just submitted PR #1243 to ansible-modules-core
This fixes an issue introduced with the update to only match group names in this VPC.
The connection to boto.vpc in that commit only references aws_access_key and aws_secret_key, which removed the ability to supply a boto profile name or use env variables for the credentials.
The fix I used was to re-use get_aws_connection_info instead of get_ec2_creds, so that the vpc connect call has the same parameters as the ec2 one.
Hopefully someone can get to this soon, as I suspect it is blocking a lot of people using AWS from moving past the 1.8.4 release.
Andy