Considering Analog Lab came with the controller you have now sold, perhaps the problem is you're trying to use the Analog Lab licence which came with your controller not the Analog Lab licence you bought with V Collection (two different licences). The new owner of your old Keylab may well have approached Arturia and asked for the Analog Lab licence which came with the controller to be transferred to them, they have a right to own it under Arturia's terms and conditions of sale. The version of Analog Lab you should be using is the one which came with your V Collection.
Sorry if this is obvious, I'm shooting in the dark tbh.