I have an AWS account with 14 instances and using scalr. I added the Api reference details and it showed up, at that time instances were pretty low. As and when I keep adding new instances it accepted few and reject the rest. Now I have an instance newly made on AWS which is not getting loaded in scalr.
Any ideas?
Instances that you create using AWS will not show up in Scalr.
Instead, you create Farms (in Scalr) through the use of custom and/or pre-configured Scalr Roles. When you launch those farms/roles, it will launch the required instances in AWS. It's like a wrapper around AWS that provides extra features, but it will only ever know about instances that have been launched from a Scalr role.
It is possible to import an existing server into Scalr although it involves installing the scalarizr software onto that server and opening some ports. Full details can be found here. Once complete, you'll have a new role that you can add to a farm and then launch.