Remove SimConnect.cfg file from My Documents to get throttle working through WASM and SimConnect again.
through the CJ4 / Working Title team identification
IMPORTANT: Warning On Kinetic Assistant and Gliders
We have numerous reports of installing Kinetic Assistant and/or gliders permanently breaking throttle events processed via WASM and SimConnect, which persists even on uninstalling these items. We recommend highly against installing those at this time, or you may not be able to use the throttles in this and other addon aircraft that intercept throttle events for FADEC and autothrottle processing code.
and the fix provided by the kinetic assistant (or deleting simconnect.cfg in your my documents folder)
compatibility issue with CJ4 mod fixed in fsConnect.dll (start Assistant and connect to the game once to fix the problem, if did not helped – remove SimConnect.cfg file from My Documents manually)