AdControl Issue

About two weeks ago i have found an extremelly annoing problem in microsoft adcontrol for windows phone.

I'was trying as to find solution on the web as discover it myself but nothing gave me the result.

The issue was so:

1) I published my application in marketplace
2) My application free version has the adcontrol on main page
3) In a week i've recieved a crash report telling me that in my adcontrol crushes my app.
So i decided to find the reason of the crash.
4) I've found a reason of the crash in one day: My app crushed after following:
     a) Going to main page
     b) Press Start button before adcontrol loaded it's content (Loaded event fired but Refreshed event not)
     c) Press Back button to return to app
     d) Here the crash comes with strange response

I've opened a topic on microsoft advertisement community and in two weeks i've found 7 people who had the same issue but didn't make the post.

Some days ago i've recieved an answer which was really helpful:
To avoid such a problem you have to Load AdControl on Page.OnNavigatedTo and UnLoad it on Page.OnNavigatingFrom

So the member of developers team said that it will take some time for microsoft to remove this error but for now some developers will have to use "Special knowledge" of microsfot adcontrol behaviour.

However we will still continue to use adcontrol in our apps, hopefully with no more crash reports.