I created a new Glide App using a Shared Google Drive sheet, not knowing that I would have to pay to have this feature. I then moved the Google Sheet into my own personal drive, but it still says I have to pay to publish the App.
Do I have to start again from scratch or is there a way to make this work?
You could try making a copy of the GSheet with the preferred google account. Then replace the old sheet with the new one.
If its something to do with the underlying account you setup Glide with you could try downgrading your app and then goto → Settings → sharing → make app copyable and then open the link with a new Glide/Gmail account.
FYI I haven’t had this issue before but I would imagine the first one should work.