At the moment I have no clue how to fix it. I guess cranberrygame will have a look at it when he has time.
That's assuming that it's even his plugin that has the problem. Truth is we don't know, it could be something C2 messed up, or his plugin, or intelxdk/crosswalk, or maybe even the admob guys changed something on their end.... Anyway, I've contacted cranberrygame on skype and left the link to this topic there for him to check out.
But could you do me a favor please AndreasR, since you've done all this work and you're the one who discovered the problem, could you please submit a bug report so we can get Ashley involved in this too?
There are 2 reason why I tend to lean on the side that this might not be the plugins fault. First of all the version that comes with C2 worked perfectly about a month or 2 ago when I published my last game.
And second of all, I tried multiple versions of the admob plugin this time(the one that comes with C2, a newer one that I had on my hdd, and the latest version downloaded straight from cranberry's site) and they all behave the same. So even if lets say cranberry made some changes that messed things up in the latest version I don't see how that would olso break previous versions of the plugin. Wouldn't it affect just the current and future versions from where the change was made?
P.S. Guess I'm gonna have to release my game with overlap set to yes and looking like crap, covering up parts of the game.... Sigh...