c4.* instanceType stuck in Provisioned on AWS 4.14, tired c4.8xlarge and c4.2xlarge, both stuck in Provisioned on AWS 4.14.
But on AWS 4.13 they can get Running.

4.14.0-0.nightly-2023-07-20-215234

Always

1.Copy a default machineset, change instanceType to c4.8xlarge, then create the machineset.
liuhuali@Lius-MacBook-Pro huali-test % oc create -f ms2.yaml 
machineset.machine.openshift.io/huliu-aws25a-nsmkq-worker-us-east-2bd created
liuhuali@Lius-MacBook-Pro huali-test % oc get clusterversion
NAME      VERSION                              AVAILABLE   PROGRESSING   SINCE   STATUS
version   4.14.0-0.nightly-2023-07-20-215234   True        False         8m30s   Cluster version is 4.14.0-0.nightly-2023-07-20-215234
liuhuali@Lius-MacBook-Pro huali-test % oc get machine
NAME                                          PHASE         TYPE         REGION      ZONE         AGE
huliu-aws25a-nsmkq-master-0                   Running       m6i.xlarge   us-east-2   us-east-2a   156m
huliu-aws25a-nsmkq-master-1                   Running       m6i.xlarge   us-east-2   us-east-2b   156m
huliu-aws25a-nsmkq-master-2                   Running       m6i.xlarge   us-east-2   us-east-2c   156m
huliu-aws25a-nsmkq-worker-us-east-2a-6vzt9    Running       m6i.xlarge   us-east-2   us-east-2a   153m
huliu-aws25a-nsmkq-worker-us-east-2ac-k8cqq   Provisioned   c4.8xlarge   us-east-2   us-east-2a   94m
huliu-aws25a-nsmkq-worker-us-east-2ad-rq2dp   Provisioned   c4.2xlarge   us-east-2   us-east-2a   63m
huliu-aws25a-nsmkq-worker-us-east-2b-svbbd    Running       m6i.xlarge   us-east-2   us-east-2b   153m
huliu-aws25a-nsmkq-worker-us-east-2bd-w4rg4   Provisioned   c4.2xlarge   us-east-2   us-east-2b   39m
huliu-aws25a-nsmkq-worker-us-east-2c-t8s4x    Running       m6i.xlarge   us-east-2   us-east-2c   153m
liuhuali@Lius-MacBook-Pro huali-test % 


On AWS 4.13, machine get Running

liuhuali@Lius-MacBook-Pro huali-test % oc get clusterversion 
NAME      VERSION                              AVAILABLE   PROGRESSING   SINCE   STATUS
version   4.13.0-0.nightly-2023-07-24-145501   True        False         10m     Cluster version is 4.13.0-0.nightly-2023-07-24-145501
liuhuali@Lius-MacBook-Pro huali-test % oc get machine
NAME                                          PHASE     TYPE         REGION      ZONE         AGE
huliu-aws25b-t8k62-master-0                   Running   m6i.xlarge   us-east-2   us-east-2a   162m
huliu-aws25b-t8k62-master-1                   Running   m6i.xlarge   us-east-2   us-east-2b   161m
huliu-aws25b-t8k62-master-2                   Running   m6i.xlarge   us-east-2   us-east-2c   161m
huliu-aws25b-t8k62-worker-us-east-2a-l484l    Running   m6i.xlarge   us-east-2   us-east-2a   158m
huliu-aws25b-t8k62-worker-us-east-2ab-xcmtc   Running   c4.8xlarge   us-east-2   us-east-2a   98m
huliu-aws25b-t8k62-worker-us-east-2ac-lmpwg   Running   c4.2xlarge   us-east-2   us-east-2a   59m
huliu-aws25b-t8k62-worker-us-east-2b-5sxlf    Running   m6i.xlarge   us-east-2   us-east-2b   158m
huliu-aws25b-t8k62-worker-us-east-2c-wfvgf    Running   m6i.xlarge   us-east-2   us-east-2c   158m
liuhuali@Lius-MacBook-Pro huali-test % 


Checked on AWS console, the Provisioned machine shows "Instance reachability check failed”
Downloaded the system log for huliu-aws25a-nsmkq-worker-us-east-2ac-k8cqq which phase is Provisioned: https://drive.google.com/file/d/1TjSY7tP-O4ofPIieEHb9vUbrQgBPEp04/view?usp=sharing

The system log for huliu-aws25b-t8k62-worker-us-east-2ab-xcmtc which phase is Running: https://drive.google.com/file/d/15zB_FRfh4fceQUYLBe0Mj4GG9pwK_-XP/view?usp=sharing 

Machine stuck in Provisioned

Machine should get Running

Must gather: https://drive.google.com/file/d/1oneVZY3wKDCya7WzmMo2Z7LlxT7QdQl2/view?usp=sharing