I've been converting my apps to the Windows store and while I have a live link on WindowsPhone.com, my apps have not been showing up on the store when searching from an actual Windows device. I've contacted Windows and their support team stated that a lot of new app submissions in the past couple of weeks have been affected (and not showing up in the store). Their response is 'They are aware of the issue and are checking into a possible resolution.'
If you have submitted an app to Windows in the past couple of weeks, I recommend you check to see if you app is in the Windows store. If it is not, contact Windows as soon as possible.
I do not believe this is an issue with Corona. I just wanted to pass along the warning!