8.0.24 does not integrate with PVM

Are you using Password Vault Manager credential entries?
http://help.remotedesktopmanager.com/index.html?credentials_passwordvaultmanager.htm

Do you get an error message? Could you post a screen shot?

I use PVM credentials via the repository (but tried it as embedded and got the same results)

Attached are screen shots...

restart solved the problem...