Contacted NI support about this but have heard nothing back. I purchased a Maschine+ second hand at a store and haven’t been able to use it because I can’t transfer the registration to my account, nor do I have any way to contact the original owner. The only proof of my purchase I have is in the form of messages with the store over a local secondhand sale app (OfferUp). Do I have any way to resolve this other than waiting for/hoping for NI’s help? I’d like to use this thing and it wasn’t cheap - my first NI device. Thanks!