well, that doesn't seem to be it... I tested it (since I have used the editor recently and wasn't aware of any problem then)
opening the scenario editor.
file -> new (so nothing ongoing)
set the end year to 1420, nothing else on that screen(scenario properties)
add a country (Austria, just to make sure it's not one of the newly added ones
)
editing in owned provinces (CTRL+ L.Click)
Lombardia, Emilia work fine, Firenze crashes..
opening the scenario editor.
file -> new (so nothing ongoing)
set the end year to 1420, nothing else on that screen(scenario properties)
add a country (Austria, just to make sure it's not one of the newly added ones
)editing in owned provinces (CTRL+ L.Click)
Lombardia, Emilia work fine, Firenze crashes..