We're investigating on our end too. Could you check something for me please? Before running DR2.0, try quitting G HUB (right click the icon in your systray and click Quit) then see if the same issue with the FFB occurs. Your RPM LEDs won't work with G HUB not running, but it will be interesting to see if this makes any difference to the FFB issues.
Just an FYI:
We did look at getting TRUEFORCE into Version 1.17 but a number of bugs arose that meant it couldn't be delivered.
The dev team (rightly) felt it was best to pull it out of the update than release it in a broken state.
If there's a chance those bugs could be fixed then maybe we'll see a 1.18 to release the TRUEFORCE integration but until you see something in the Patch Notes thread assume 1.17 is the game's final update.