Working on a project for a customer, we had an issue.
In fact, after SecureHub enrollment, no Worx MDX apps show up in Secure Hub.
I asked my customer to verify id port 2195 and 2196 were opened for APNS communication from XMS server.
Even if those port seems to be opened, the connectivity checks from XMS Web portal show issues.
We were able to see Web links published from XMS Server in Secure Hub but no MDX apps.
TIP: One easy test is to remove the minimum version from the MDX policies for one app. If it shows up in the store then (but won’t download), you know it is a result of XMS not yet having been able to detect the OS version (and thus assuming it is lower than the minimum).