112 Bible Maps

I purchased the 112 Bible Maps for my Ipad. I was so excited as this looks just like what I wanted. However, upon opening one map I discovered that I am unable to go back to the previous screen that had a list of different maps and diagrams. I had to fully turn off Ipad and turn it back on. Is this problem going to be fixed? If this was a free program I would just delete it but since it is a paid program I would like to keep it AND BE ABLE TO USE IT IN THE USUAL MANNER!
Thank you.

Genevieve 2 about 112 Bible Maps + Commentaries, v2.7