Resolved
The rollback was successful. Users are able to start new environments after the Runner auto-updated.
Monitoring
We've rolled back to the prior stable release as a mitigation, and confirmed that new environments are able to start.
AWS Runners will pickup the change in the next 5m. After waiting, please try creating new environments again.
Investigating
A small group of customers is experiencing issues starting new environments - existing environments are able to start. We are investigating the root cause.
