AP+ fuel problem

Device: IPad Air M2
Operating system: iPadOS 26.2.1

I took off with 69 tons of fuel and now after turning off AP+(5 minutes after turning on) the plane has only 50 tons of fuel. Looks like AP+ is cutting the fuel, making it impossible to reach my destination

You can follow the thread below:

What is certain is that fuel consumption appears to increase as the frequency of switching between Autopilot Plus and manual control increases.