Remote Test Lab not showing uploaded app

Hi, I’m new using Remote Test Lab and having an issue with it: after uploading the apk file of an app to test, it is not showing in the app list. I mean, the apk apparently is uploaded because I can see the progress bar, but after that it’s not appearing anywhere. Any ideas?

Edit: I am also wondering, is it allowed to upload and install apps in Remote Test Labs, not developed with Samsung SDK?