I've recently built a site on Craft, and while developing it locally I had purchased a license for Craft Client. After publishing the website to the production server the administration panel is showing a modal window with the text "You're running Craft Client with a Craft Personal license."
I've checked and made sure the license.key file is where it's supposed to be, and that the file is accessible. I've built a couple of websites on Craft before and have not had this issue until now.
I've tried re-uploading the site to a different server/domain, and it said in the admin panel that the license didn't belong to this domain, but the other domain it was originally uploaded under. So it obviously is reading the license file. I clicked to transfer the license to the new domain, and the same issue started occurring (modal window the the message "You're running Craft Client with a Craft Personal license. What would you like to do?").
As Craft initially read the license file (otherwise how would it know that the site didn't belong to the domain?), it means the license file exists and is valid, so I suspect it's an issue on Craft's side. Unfortunately their support is taking a little long so I thought I'd come to the community to hopefully get some help.
Edit: From what I remember from a year ago, this was entirely my own fault. I had purchased the license on the staged version of the site. My bad.