No not really. Not at all in fact, just a tiny ennoying thing. I am not that an experienced rider (2250 km with a V5F and 170 km with the V12 HT), but still I really enjoy the V12 HT. It is great for almost everything. The tyre is very good, I have experienced tracking just once but on a tiled curb, I shouldn't have been there. I feel the wheel a little bit floating when riding on a thin layer of tiny gravels, and I am not always confident while turning at low speed but overall the tyre saved me more than once absorbing nasty potholes I didn't see fast enough.
The wheel is really stable between 15 and 35 km/h and I feel very confident downhill. Above that speed I cannot say, I've been riding it once briefly at 40 km/h and it was still very stable, but I am not confident enough to push it further.
No the only issue I have is that my trolley handle cannot remain locked in closed position, something broke in the mechanism, or is damaged, not sure what happened (the wheel rolled over once or twice before that but at low speed).
According to me, with my experience, the wheel shines the most on the road, the woods, while off roading on dirt tracks, and is really good to absorb hills with its torque, but is not really comfortable and pleasant offroad when there are a lot of rocks, where it can be trapped sometimes with difficulties to restart because of its weight, even with its torque.