I'm having an issue where, when I try to inflate a girl, a weird mannequin-looking girl appears and I get a pop-up box saying 'there's no girl...'. When I click the box, it opens a youtube link to a way to fix this on Android. Problem is, I'm on PC (windows 10). I've tried both air and water inflation, but only with Sophia so far, so no idea if it happens with other characters too. Haven't tried stuffing anyone yet either.
Update: Just tried stuffing and inflating with Victoria. Both work just fine with her.