I found another issue when looking at that screenshot! 
The origin and destination airports are included in the route twice. I have now fixed this!
Here is a new ZIP file which includes this fix. It also sets the panel version to 8.5 - so you should be able to verify that you have the correct version installed by looking for it in the MSFS Content Manager!
Download IGP (Dupe airports fix)
Kind Regards,
Malte