Critical error from ModuleEnginesAJERotor

[DracheTek]

There is a critical bug from ModuleEnginesAJERotor

Reproduction: in flight, shut down a part with ModuleEnginesAJERotor by pull the throttle to a full zero.

What does not reproduce: If the craft is originally landed, I can pull the throttle down to zero.
Once it lifted off and landed again I can not pull the throttle to zero.
switching off by action menu is safe, whether it is in flight or not.
The model itself have no problem. I tried by comment out the item in AJE config file.
Other models using AJE Rotor setting are also broken, namely VTOL engine from Firespitter.

The game refer it as NullReferenceError.

[blowfishpro]

I see a lot of NREs from Firespitter, but there's not much I can do about those. I was able to get an error by throttling to zero - the screen turns black and the debug output spams "Look rotation viewing vector is zero" - is that what happened to you? This is usually caused by NaN or infinite forces being applied. If so, I'll look into whether it's AJE which is causing this.

[DracheTek]

Yes it is what I have encountered.

[blowfishpro]

For reference, the issue was that when throttled down to zero, the SAS multiplier became NaN, so the reaction wheel was giving NaN torque.