812 EVAP code

My 2019 812 SF is once a month throwing error codes related to the Evaporative Emission Control System (EVAP) according to the Ferrari Service Center. Last time I was in, I had nearly a full tank of fuel. They cleared the code and explained that it most likely come on again. When I bring it in again they said to make sure it has a bit under half a tank of fuel to do the diagnostic test (I assume a smoke leak test). I've read about older models throwing EVAP codes, but any other 812 owners have experience with this? Thanks

 

I have a Portofino giving evap small leak, looks like the issue is the capless fuel filler neck.
A smoke test would be standard procedure.

 

Yes, will do smoke test next. Thanks for sharing