Tamron issued a compatibility notice indicating that some of their lenses “may experience limitations in functionality” when used with the latest Nikon Z8 camera firmware update version 3.00:
Notice Regarding Compatibility of Some TAMRON Lenses with the Nikon Z8 Camera (Firmware 3.00)
Dear TAMRON user,
Thank you for placing your trust in our products!
We’d like to let you know that after updating the Nikon Z8 to firmware version 3.00, some TAMRON lenses may experience limitations in functionality.
Our team is already working hard to analyze the cause and find an appropriate solution. Of course, we’ll keep you informed — as soon as there are any updates or new information regarding affected lenses, you’ll find them in our newsroom or on our social media channels. (source)
You can check the compatibility of Tamon lenses on this page.