So here is a detailed update if anyone has a similar problem.
Could not get the paddles to work properly in-game, even though they worked for calibration. To work around this, I ran gpxpatch and rebinded the gearshift up command to 'A'. I then had to use logitech profiler to make the right paddle activate keystroke 'A', and the left paddle activate keystroke 'SHIFT'.
Ingame, I went to advanced control settings in-game and created a new control setup. Set it up as a wheel, and set gearshift up to 'SPACE' (which is actually 'A', and gearshift down to 'SHIFT'.
After that, things now work properly.
Edited 1 time(s). Last edit at 01/14/2020 12:44AM by Hrafnkolbrandr.