Check in with her to see if she's fallen victim to a typical gymnastics trap of listening and forgetting on her part, as well as the coach's. For instance, her coach may have gone ito great detail about the need for balance, rhythm, and position during both the piro and clear hip, and done so when she was either smaller or had just one of those two skills leading into the glide kip.
Being either smaller or having one less skill to do may have lulled her into believing she had it all figured out when she was really just enjoying less demanding circumstance. During times like that kids will turn down the volume on whatever the coach has to say about the correct way to move from the handstand into the glide because, well duh, she can do it just fine and the coach just hasn't come around and looked closely enough to notice it's all good.
Maybe she's hearing all the corrections she needs to make the connection work, but she heard those same corrections when the connection being done without hitting her feet during the glide. All through this the coach is repeating the same corrections, see's no change, and concludes that she either doesn't care, hasn't the strength, or just lacks the ability to make the connection work.
She should ask to go through the corrections with a brief verbal explanation of each one's benifit, and then she should make the changes instead of believing she's already made them and is just not that talented.
The reality is that gymnastics is much easier than some of us let it be.
