Will we bre able to upload FBX characters from CC3 without errors?

Hi. I am wanting to upload CC3 characters to Mixamo and they are pre-rigged via FBX format.  When exported out of CC3 they have blendshapes.  If you would accept FBX's from CC3, I could preserve a large part of my pipeline that was lost due to Fuse evaporation. - Hardleft121/Greg