My shift key works fine in windows 10. It doesn’t work in P3DV4.5 to access aircraft panels. I have Carenado and Captain Sim addons that utilize Shift+3 Shift+5 etc to open control panels. I only find solutions to fix this problem for Windows 10. It works fine in all my applications except in P3D.
Jim
i9, 32 ram, 2080ti, Windows 10 P3DV4.5