Interesting. Please share when you find the solution. I recommend verifying connectivity.
Start with the check command: https://learn.microsoft.com/en-us/azure/azure-arc/servers/manage-agent#check
https://learn.microsoft.com/en-us/azure/cloud-adoption-framework/scenarios/hybrid/arc-enabled-servers/eslz-arc-servers-connectivity
https://learn.microsoft.com/en-us/azure/azure-arc/servers/troubleshoot-agent-onboard