email@example.com Posted July 29, 2020 Report Share Posted July 29, 2020 Switched to a new computer and trying to activate Nitro Pro (12) on the new machine. Went to deactivate on the old machine first and got a -20:error - Invalid license number error. Also tried activating on the new machine without deactivating first and had the same issue. Both copies are version 12. Link to comment Share on other sites More sharing options...
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