NOTE!
This is a mod not a offical fix how ever it works like a charm so for those that dont want to wait for a fix this is the only current way of fixing the bug.
fix-mod:
http://www.kbmods.nm.ru/eng/mod_16_e..._mirabella.zip
install:
Put a file "mod_16_eng_fix_mirabella.kfs" in a folder "gamedir"\data\mods
(If no mod dir is there create one)