The VESC community is extraordinarily impressive.
At the same time, I’m doubtful that software bugs in the proprietary code are related to the vast majority of these failures people describe. The only legitimate issues I’ve seen are caused by sensors (either the foot sensor itself, or improper mounting usually related to grip tape) or water damage.
A Onewheel attempts to self balance. To accelerate, you lean the direction you want to go. As your speed increases, the board starts tilting the nose up to signal it’s reaching its limit. Powering the motor requires energy, and self-balancing requires additional energy beyond that, so a safe amount of headroom needs to be reserved to accommodate for variations in terrain and rider movements.
When the noise starts tilting up, there’s nothing to stop the rider from leaning forward more, which also signals to accelerate. This is called “pushing through pushback” and it’s required to go more than ~16-18 mph.
Imagine the extreme case where you quickly lift your rear foot off the board. Obviously it’s going to stop suddenly, and you’ll fly through the air and smash into the ground. Every nosedive is exactly this scenario, just slightly less extreme.
Once I grasped this simple concept it became obvious that every fall was my own fault. This is why I recommend new riders practice balancing with the board powered off. If you can’t easily do that, you have no business pushing through pushback.
The boards being “fixed” by this recall are getting a new feature that makes the board vibrate at high speeds. This is done by modulating the motor, it requires no new transducer. The only “failure” is of the rider being oblivious to the signal the board is sending.
Source: own a V1, Plus, and GT; ridden thousands of miles on my own and other’s boards; ran a meetup and met a huge variety of rider types; once raced in the GoPro Games; crashed hundreds of times including the obligatory bone-breaking incident resulting in surgery
tl;dr: Future Motion is anti-consumer, haptic feedback is overdue, but there’s nothing inherently wrong with the Onewheel. Every nosedive is ultimately due to rider error.