I was able to print last week just fine, but now it’s asking me to install a vat compatible with clear v4? is this a sensor issue, or the fermware cocking things up?
If you are still having an issue, the first thing I would recommend is cleaning the contacts on the bottom of the tank, and the tank spring fingers on the tank carrier. Be careful not to bend the tank fingers, wipe along them, not across. You can clean them with 99% IPA, but don’t get any on the tank itself.