I changed everything and did exactly like you windcatcher, I got some models working :
a chokidai :
a drake :
innoruuk :
but I still have a pb with this skeleton of pure evil and madness !
I had to change some little things to get the 1rst one working,maybe it s because we don't use the same (x,y,z) ???
my z goes in the deep direction, y goes vertically up and x goes horizontally in the right direction ...