It has been brought to my attention there is a crash in the trial if you attempt to use a phantom staircase that exists on the starting tile to go down and then use the stair way up afterwards. I have removed the staircase that isn't visable on the starting tile to resolve the issue. Working to get an update published right now. Thanks to everyone that let me know about this.
To avoid the issue just move up and proceed through the trial level and do not use the invisible stairway on the starting title. An update will be submitted for review very soon.
It has also been brought to my attention there is a bug when using some scrolls (specifically one that need a target selected) from the ground when there are multiple items on the same tile. This isssue will also be fixed in the update.
*** New Update ***
An update is currently in the review process for XBLIG that fixes the above issues along with an issue with the counter attack skill that was randomly causing crashes.