Yes, I understood what he meant, but I was simply writing out what my installation process was when I got the error. I thought, maybe, it’d help them in finding a solution to the bug.
And the reason why I did it that way (nginx/php before virtualmin), was because I wanted a certain version of those programs. And I didn’t want to have to do the whole uninstall, uninstall related dependencies, upgrade and install, and etc etc…
But although they suggest to install it on a fresh install, I think a bug that occurs should at the very least be let known. Whether they fix or not, well, that’s up to the dev team. If there is no fix, that’s fine.