host key failed vncproxy

Hi, if i was open on 5 our nodes the console, i get the following error message: FAILED to connet to Server Host key verification failed. TASK ERROR: Failed to run vncproxy. on log in cluster i found: Jan 30 10:21:28 pegasus systemd[1]: Started PVE API Proxy Server. Jan 30 10:21:34 pegasus...