Stopped ec2 instances are no longer being resumed when needed. Instead, new instances are spun up.
Instances were correctly resumed in version 1.39 but not in 1.40.1. Reverting to 1.39 fixed the issue for me.
This recent pull request appears to have removed the logic necessary to resume stopped instances.
Specifically the changes here:
|Status||Open [ 1 ]||In Progress [ 3 ]|
|Resolution||Fixed [ 1 ]|
|Status||In Progress [ 3 ]||Closed [ 6 ]|