**System Information**
tried it on the latest blender version on windows 7 and ubuntu
If I export an armature as bvh from this file [[ https://www.dropbox.com/s/5a19opil8t0d5ww/file_no_problem.blend?dl=0 | name ]]and then import it back, the imported armature looks the same, but when I export an armature from a similar bvh file found here [[ https://www.dropbox.com/s/4yth06gpuqgopqy/file_problem.blend?dl=0 | name ]] it doesn't look anything like the original. Please assist me as its fairly critical for me. Thank you very much in advance for your kind support and assistance.