I have various problems with virtualmin. One of the problem, strangely, one virtual site login shows virtualmin and another virtual site login shows only the webmin. I checked both site configuration and they are set identical besides different host name and user name.
So you’re saying that when logging onto Virtualmin, on port 10000, your users are seeing different things when logging in… one sees Virtualmin as expected, the other launches into something that looks more like Webmin?
Is it possible the one users theme was changed?
In Webmin -> Webmin -> Webmin Configuration -> Webmin Themes, what is “Current theme” set to?