Everything will be fine with my classes, the zones and documents will be scanning fine. Then I will open the session up and all of my zones will have moved and be readjusted. I begin to get the error  "the zone is outside the bounds of the image". Often, when I go look at the zones they look fine, however they aren't picking up any information or reading properly.  The only solution I can find so far is to reset from previous saved versions, however this keeps occurring and I don't know why or how to fix it in program. Any suggestions? Is this a known bug?