When activating Pix4D Desktop in a device, the discovery mode is activated, instead of a paid license, even though there is a paid license assigned to the account.
The paid license is activated on the maximum amount of allowed devices. For more information: Floating license.
1. Open Pix4D Desktop in a computer with a paid license activated. It is possible to see the devices in which a license is activated here.
2. Log out to free the seat: How to log out Pix4D Desktop.