Cant remove smart apps

Hi all, I have created 3 smart apps, how ever I am unable to remove them, I get the following error

This SmartApp can’t be deleted at this time because it is installed by one or more users

It sounds like you are trying to remove them in the IDE from the “My SmartApps” tab, instead of using your phone / mobile SmartThings App?

I had that once before. It wasn’t on my phone, but I had set it on the IDE against my home location and as soon as i removed that from the settings it was fine.