While I haven't had a chance to take a look on my iPad yet (it's not with me right now), I did take a look on my laptop. I am going to say that I'm about 90% sure it's an out of memory problem. Try archiving all but one page and see if it loads then. Then unarchive a page or two at a time and you should be able to quickly figure out which ones are causing the problem. My guess would be one of the Seafoam Cave pages or possibly the one with the Hex grid. In theory mobile devices should be able to work with any one of those pages individually, but when they are unarchived, it tries to load all the graphics right when you join the campaign. So it may be that you can only have one of those really complicated maps like the Seafoam Cave ones unarchived at once (complicated because there are a lot of individual objects on them...not only tokens but lots of map tiles). I will do some further experimentation on my iPad later today/tomorrow to get some further insight, but I wanted to let you know my thoughts in case you didn't have time to wait until then to find out the final result :-)
