Unable to find a valid cruising altitude

After entering a new profile for my RV-6 I get the following error message when I try to plan any flight:

Unable to find a valid cruising altitude within the limitations of direction of flight, origin and destination airport altitude, and available performance data.

I suspect that there is something in my aircraft profile that it doesn’t like but I have no idea what…

Your cruise data is a bit too lean. Create another cruise profile with data at a few altitudes from 1000 to 15000 feet (like your climb/descent) and it should work.

Thanks - adding the same altitude items to cruise that I had in descent and climb fixed the problem.