Hello,   The following hotfix solves several issues, and expecially the export function for P3Dv4!   Note: this is not a full installer, but a replacement of the original PFPX.exe file. Unzip the file and place it into the following directory: c:\aerosoft\Professional Flight Planner X\   Important: PFPX requires 'Microsoft Visual C++ Redistributable for Visual Studio 2015 x86'.   Best regards, Judith&Christian   PFPX Hotfix 1.28.9i.