im using blender 2.7. i rig two year ago and took a brake and now back. An old avatar i had made clothing for and rigged in the past and when i upload it doesn't attach as a rig anymore an just an object. i try bento skeleton. basic skeleton. everything move fine in blender. i try avastar and even old rigging method before avastar days. i even try a basic rig box. when i upload and click weight box on sl to upload. it shows that it weight to the body and moving and bending but when i upload and attach it act like and object and can resize move etc on the avatar. i try beta server. try a different computer. basic blender with no add on. i even downloaded the sl basic viewer. had a friend screenshare and made sure i was doing thing correctly and it even puzzled them on why its not working. sl upload gave no error warning. try different selection method to export to make sure i was not doing anything wrong. i probably am doing something wrong though lol. i find. alot of tutorial are outdated maybe?