This issue is littile complicate or i am totally doing some thing wrong .
i have downloaded one sample animation from mixamo as bvh and i have also followed all the steps over here
Animation works well .
But i needed some tweak in hand position and some leg movement ..i did them in blender and blender plays well after that i again exported the animation and just everything doomed .
dont know what i am doing wrong .
tried with other animation from mixamo works well , but if a single frame edited by blender everything distorting
mixamodownloaded.blend
with_extra_anim.blend