I have the same issue. I have heard that it is a known glitch, but nothing beyond that. And I'm hoping that our progress is being counted, even if the bat doesn't show.
The weirdest thing is: my daughter's account shows that we are at 1.5 stars (we have done something together every day, so far). But on my account, she is just 1 star. Hers says we need 3 more days to hit 2 star but mine says 6 more days.