After updating my prime 4 to version 4.2.0 the device is not identified on the page https://enginedj.com/account/authorized-devices. It shows the information UNKNOWN. I checked by going back to the previous version - 4.1.0 and then normally in the authorized-devices section it shows what device and serial number. I encountered the above-mentioned problem when I wanted to activate Steams. I paid for access to Steams but I could not activate it because how could I since the system shows UNKNOWN!!!
.My email address matches the one in my profile engine
Everything is clear now, the problem was paying for steam via PayPal. The money was taken but there was no activation. It only worked when I paid by card