In case of Microsoft Store version, the configuration of the throttle can be found here: %LOCALAPPDATA%\Packages\Microsoft.FlightSimulator_8wekyb3d8bbwe\LocalState\packages\<name of a32nx folder in community folder>\work\ThrottleConfiguration.ini
In case of Steam version, the configuration of the throttle can be found here: %APPDATA%\Roaming\Microsoft Flight Simulator\Packages\<name of a32nx folder in community folder>\work\ThrottleConfiguration.ini
In my case I suspected that the Asobo A320NEO default was storing the worg settings so I deleted the whole folder that was inside …\packages\ and I got back the original settings.