Along with the release of Alpha 3.5.0, the New Flight Model has been implemented. This includes many bug fixes, performance improvements and a complete rework of the ship controls.
As a result of this update, some players who customized their controls prior to 3.5 may experience unexpected behavior, such as an inverted throttle.
In this instance, we recommend players delete their 'USER' folder to resolve any lingering control conflicts from the pre-Alpha 3.5 versions.
The default directory for the 'USER' folder is as follows:
C:\Program Files\Roberts Space Industries\StarCitizen\LIVE\USER
Also, check any third party control profiles for incompatibility with the updates to the Intelligent Flight Control System (IFCS) and controls. After completing this, you should have a fully functional foundation to apply any of the default profiles, 3.5-compatible custom control profiles or rebind any controls to your liking.
If you have any feedback on the new Flight Model, head to Spectrum and add your ideas and suggestions there.