Emissions light on

brand new Octavia se tsi ,delivered two days ago. Yesterday the Emmisions light came on the dash. The handbook says it will reduce performance but it hasn’t. Other than the light being on there doesn’t seem to be a problem. The MySkoda app vehicle health report says everything is fine. I’ve booked it in with the dealer but wondered if anyone else has seen this on a new Octavia. Couldn’t find anything here