(Users who continue to experience this issue should contact user support.)
Some users have reported that the scanning feature is sometimes delayed when using the app to take multiple scans in a row: the scanning feature will load, but the iPad screen will be black for a short time before showing the live camera image. (Pressing the scan button when the screen is black will still capture the image.)
This is a known issue and we are in the process of constructing a fix. Insight Notes currently uses some standard elements of iOS to perform its more complex functions, and the camera is one of these elements. Unfortunately, sometimes it takes a bit for the camera component in iOS to make the live feed available. (If you have an iPhone you've probably noticed that sometimes when you open up the camera app it takes a bit for the camera image to render; the same thing is happening here, but it just takes a bit longer because the process is routed through Insight Notes.)
In our experience the live image always eventually renders, sometimes it just takes a bit. We know this isn't ideal for rapidly scanning multiple documents, but we are working on this issue to make your workflow faster.
When we first produced Insight Notes it was purely a notetaking app. However, our testers quickly saw that it would be possible to expand the list of features to do other things, and we've tried to respond to those requests as quickly as possible. Scanning is one of the things we added to accommodate user requests. Improving the ability to capture multi-page documents is a work in progress.
We will also be making continued enhancements and modifications based upon user feedback.