Incredible story. And I thought I was the only one who fell on OneWheel+ after firmware upgrade to Andromeda.
I also experience the same issue of the board NOT charging to 100% and charging less and less with each charge.
99% , 98%, 97% etc.. I keep charging it, but it stops at whatever number.
I upgraded the firmware more than a week ago and went riding. While doing a carve to uphill road, I found myself flying forwards. Hit the road. hurt myself pretty badly.. (5 contact points with asphalt) , huge bruise on my thighs. bad torn skin in 5 contact points with the road. on my leg, my knee, elbow, and arm.. :-(
At that moment, I thought that maybe I have done something different, but I went up that road so many times and I was not even going that fast.. (So something is here, since I read your story and my board also does not charge to 100%)
My wounds are healing now and I filed a ticket about battery not charging to 100%, but I did not put the two together: battery not charging and my fall..
Hmm.. Anybody else crashed after firmware upgrade?