Hey I’m trying to enable VNAV but it isn’t working. At cruise about to decend.
Was your aircraft climbing at the time? Sometime if you dip below your cruise altitude and your autopilot is adjusting, it thinks you are climbing.
If not, what was the error message?
Nevermind I found the issue. My first VNAV waypoint was 32,000 ft and I was at 30,000.