That seems like a AD user ? Is there a problem with identity source ?
Are you able to login with that AD user ?
something is strange with this permission: if the permission was assigned to the inventory object "sa-esx01.vclass.local" then it should read "defined in this object and its children".
but here there is an inventory object specified - do you have another object with the same name ? because you can modify or remove the permission only at the object it was defined previously