I got some error reports about the scenProc IMPORTOGR step. Sometimes it would throw an error that interleaved reading mode should be used. This mainly happened on bigger, more complex files. But when working on my Nantucket test area I also noticed that reading with certain required attributes stalled and got in some kind of endless loop.
I have now fixed both of these problems. So in the next development release it should be easier to use OpenStreetMap data in scenProc.