Out of curiosity, did you note when it started (and stopped). Was there any event related to it? Is it early in the game...may be it is something linked to some Balkan issue misfiring.
This occurred imo with the crimean war. Whether the war began before the script fired I'm not sure, but I do remember britain and france getting it into it earlier then I beleved the event firing. I want to say that austria did not take a side for a while, but when it did it would declare war every turn, and it did it for what I aproximate about six months in 1853. Towards the end of 1853 it suddenly stopped.