Goran and I have both tested this, with hardware and with just the mouse and keyboard. Neither of us have any problem taxiing after landing, whether we used reverse or not. However, this was done with the latest dev version, which is not out to the public yet. My guess is that this issue has been resolved as part of some of the other updates/fixes we have done. I'm not inclined to consider this a problem (bug) until you guys have the next update and can try it. No release date yet... stay tuned.