Quote - I found a weird bug, maybe it's percular to my configuration only.

First some background:

I have several external runtimes: Micheal, Aiko, ...

When you exit Poser, it writes LibraryPrefs.xml.  When you start it puts you in the same place.

Now the problem:

If the external library points to Victoria 4, Poser starts, but as soon as I move my mouse it crashes.

Once I restored LibraryPrefs.xml, it worked OK.

As I said could be a fluke, or one-off

I have external runtimes and never have that problem. Try restoring the preferences for Poser and see if that helps.  If you don't know how to do that, it's found in "Edit / Preferenes".  Change to "factory default" and click "set preferences", then "OK" and exit Poser.  Open poser again.

Also so far as V4 is concerned. Yes, you need to install her to the main Poser runtime.  Then run that update file that is deposited on your desktop.  However, you can then make a copy of the files installed and place them into your V4 external runtime.

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