Yep. Known problem.
In order to avoid it, see this thread:
http://www.subsim.com/radioroom/showthread.php?t=180044
Basically, what you do is run the tutorial in "vanilla" with no mods, return to Kiel, save, exit game, install mods and then start up game, start new campaign and "skip tutorial."
But do check out the thread linked above, as it is much more detailed and contains a ton of extra useful info.