Hi,
Somehow the post-action call was executed but NSO was unable to realize it. if you try the command: "show side-effect-queue", you will be able to see which call is stuck. Also, just for troubleshooting, check the HA status of your deployment, if...
Another workaround also is to allow ssh-rsa from NSO global settings. (set devices global-settings ssh-algorithms public-key ssh-rsa)
This will allow NSO to fetch "unsecured" keys...
