Missing Bone

i really dont know what im doing wrong >.<

ive followed this tutorial [link] and then this one to fix the problem with the previous tutorial and got it to export fine, but when i loaded it into xps it only had the root ground bone >.<

i tested an area with weight paint, but after i added the paint and tried to export it said that that bone doesnt exist O.o

im so stumped >.< its starting to bugg me now xD