Wikitude

Crash returning to wikitude activity from PoiDetailActivity

Hello,

I'm trying to learn wikitude, I find it very powerful and easy but I have a problem I can't seem to resolve.
Following the sdk tutorial SimpleARBrowser, I have created an activity that implements ArchitectUrlListener and loads the POIs from an ArrayList.
Everything works fine, I can see the POIs looking around and click on a label to start my PoiDetailActivity.class, but when I click the back button to return to the wikitude activity my app crashes.
I have pasted the LogCat here: http://pastebin.com/mSh9huhK

Can you help me?

Thanks,
Antonio

Ok, it look like the crash is related to the number of POIs loaded (more than 100 at the moment).
Loading 50 or so POIs works fine.