Hi Tanya,
Can you include 2 screen shots showing the discrepancy between the apps/pages?
You may want to double-check your project is same and scoping is same etc.. - but considering you're saying both show a total of 78 Test Cases then it does sound as if it's same, but you may still want to double-check.
We may need to handle this via a support case, it may be that we need to dig more into this. Yet, let's start by if you can include these 2 screen shots so we get a clearer context , and we'll take it from there.
Thanks,
Sagi