[Bug] skipping us-east-1c from selection because it doesn't support the following instance type

[cest-pas-faux]

What were you trying to accomplish?

Create our nodegroups for a new cluster

What happened?

After upgrading eksctl from 0.132.0 to 0.149.0, we are unable to create NGs.

eksctl prevent us to create the NG due to the instance type supposedly not available (we verified for a couple and they are available in the UI to launch new instances, we even tried using on-demand.
The list of instances is generated using ec2-instance-selector with the appropriate filters.

How to reproduce it?

Config file extract (all 3 NG have the same config

  - name: spot-1b
    spot: true
    minSize: 1
    maxSize: 2
    desiredCapacity: 1
    instanceTypes: ["c5.2xlarge", "c5.4xlarge", "c5.xlarge", "c5a.2xlarge", "c5a.4xlarge", "c5a.xlarge", "c5d.xlarge", "c5n.2xlarge", "c5n.xlarge", "c6a.2xlarge", "c6a.4xlarge", "c6a.xlarge", "c6i.2xlarge", "c6i.4xlarge", "c6i.xlarge", "c6in.xlarge", "m5.2xlarge", "m5.xlarge", "m5a.2xlarge", "m5a.xlarge", "m5n.2xlarge", "m5n.xlarge", "m5zn.2xlarge", "m5zn.xlarge", "m6a.2xlarge", "m6a.xlarge", "m6i.2xlarge", "m6i.xlarge", "r5.xlarge", "r5a.xlarge", "r5b.xlarge", "r5n.xlarge", "r6a.xlarge", "r6i.xlarge"]
    privateNetworking: true
    amiFamily: Bottlerocket
    volumeEncrypted: true
    volumeType: gp3
    subnets:
      - SUBNET-2
    ssh:
      enableSsm: true

Creation command

eksctl create nodegroup --include="spot-1b" -f clusterconfigs/cluster.yaml

Logs

2023-07-13 20:04:37 [ℹ]  skipping us-east-1c from selection because it doesn't support the following instance type(s): c5.2xlarge,c5d.xlarge,c5n.xlarge,c6a.2xlarge,c6i.xlarge,m5.2xlarge,m5a.xlarge,m5n.2xlarge,m5n.xlarge,m5zn.xlarge,m6a.xlarge,m6i.2xlarge,m6i.xlarge,r5n.xlarge
2023-07-13 20:04:37 [ℹ]  skipping us-east-1a from selection because it doesn't support the following instance type(s): c5.2xlarge,c5d.xlarge,c5n.xlarge,c6a.2xlarge,c6i.xlarge,m5.2xlarge,m5a.xlarge,m5n.2xlarge,m5n.xlarge,m5zn.xlarge,m6a.xlarge,m6i.2xlarge,m6i.xlarge,r5n.xlarge
2023-07-13 20:04:37 [ℹ]  skipping us-east-1d from selection because it doesn't support the following instance type(s): c5.2xlarge,c5d.xlarge,c5n.xlarge,c6a.2xlarge,c6i.xlarge,m5.2xlarge,m5a.xlarge,m5n.2xlarge,m5n.xlarge,m6a.xlarge,m6i.2xlarge,m6i.xlarge,r5n.xlarge

Anything else we need to know?

Nothing fancy on our setup

Versions

eksctl 0.149.0