[3ds max]actorx do not export animations with linked bones properly

[sv13]

hi, i have few animations of a first person arms and pistol. like reload, equip, attach silencer, etc, i have linked pistol frame bone to the hand bone, and pistol slide, mag and silencer to the frame bone, to simplify animation process
(pistol consists of 4 separate bones: mag, frame, slide, and silencer)

but now i am in dead end, because actorx can not properly export my animations, everything is looking nice (in udk)except mag slide and silencer animations which were linked to the frame bone, they are rotating slightly but wrong,

any suggestions

EDIT: its working, there was a problem with my bones during export, 3ds max's fault