I’ve noticed this as well. Gelly Star has been appearing as a female in her session but as a male in my simultaneous session.
I have an update to the problem. It seems that its only the added extra kits that causes the problem. I have noticed that women wearing the stock Zwit kit show as women. Women using added kit like team kit are the ones that change. Katherine used the KISS team kit on her screen she had a women’s avatar, on mine and others she was male. She changed to level 25 kit and she had a Women’s avatar for the whole race. Most women will not be aware of this unless told.
I now look like a guy, after the update.
Lost my ponytail and hair options are only male cuts.