This photo was taken at full throttle, this motor is rated at 4000 w continuous so would expect to see at least 4000w displayed with a current of approximately 50 amps, there is no throttle reading or phase amp reading’s which I have seen on similar setups , interesting that for a couple of seconds it shows those sort of readings then flat lines every time it goes from no throttle to full throttle
Were you driving it when you took the screenshot? Or was the wheel off the ground and spinning in the air? If it was in the air, it's impossible for it to use that kind of power because there's no load on the motor. Power output is not constanty the values you set as max values, or what the motor is rated for. What you set as max values will only occur when you have maximum load on the motor. And the rated power honestly has nothing to do with anything; the 4000w rating is not a continous power rating. Motors don't have continuous power ratings. They only have a power level that was used for testing, and a recommended peak power output. The 4000w rated power of the 138 90h is just the power that was used when they tested the motor at the factory. It does not represent a minimum or maximum or constant or continuous anything. Power output is directly related to the load on the motor. If there's no load on the motor, it won't use any power to hold at any speed. For a qs138 90h to hold 4k rpm with the wheel in the air, it only takes about 1-3amps of current, or 77-230watts with your battery. If the wheel was still accelerating, it would be using a hair more current, because acceleration is load. But it's extremely low load because it's only accelerating the mass of the wheel, not the entire bike and rider. Which means everything in your picture is normal. It's even common to only see around 40watts when holding full throttle once the wheel has reached peak top speed.
The only way you're going to see 4000w on the power guage is if you drive the vehicle, after changing all critical parameters to the proper values for your motor and battery, doing the autolearn, and tuning it correctly, and have it set to at least 50 line amps. But just so you know, that motor is actually a 25kw-50kw motor. So I hope you have the battery and controller to support that kind of power. Bare minimum yuo want an ND72680, but preferably an ND72850 or ND721000, or even an ND721200 if you want to actually make real power with it. And a 72v nominal 50ah+ battery capable of 200amps continuos 300 amps peak absolute bare minimum, but preferably 300-400 amps continuous and 500-800 amps peak.
Also, the app works totally fine. Close the app. Go to your phone settings, display options, font size. Reduce the font size to the smallest possible setting. Back out. Open the FD app again. Everything will be visible. All numbers, setting names and values, everything. Just smaller.
