Skinning an avatar in 3dsmax include two categories called "Skin" and "Physics". An Open-Collada file format can only support "Skin" way perfectly, however, while exporting the avatar as Open-Collada file. If you face an issue importing Open Collada file or importing avatar including animation, please try with FBX either Alembic file format with PC2.
My character skinned in 3dsmax looks a bit different after exporting as an open-collada format.
