From the custom apps list on PMPC cloud it is not immediately clear what apps are compatible with Desktop Publisher. Its only on comparing publisher and cloud custom lists that you can determine what apps are missing.
Discussing this with support it was noted that the custom detection/uninstall scripts were causing this issue. But this is only visible when creating a new app or editing an existing one.
I request that such compatibility limitations/restrictions being flagged in a clear and visible manner from the main custom apps list without having to compare the two lists or edit specific apps to see the warning.