I have the same issue running the latest beta. I assume you have a T-Flight Hotas 4 , not a T-Flight Hotas X. I am running a T-Flight Hotas 4 on OSX and it does not recognise the Throttle on the left hand unit , nor the Yaw on either the left hand unit nor the stick. All other buttons and controls are recognized. Other answers that solved issues seemed to be for the older X unit.