Photos App on Mac not analyzing faces
So here's the problem, i have an external hard drive where i have imported all of my pictures from my iPhone (there's more than 9000 of them) in a dedicated photo library, so it's well organized with all of the metadata (location, camera info, date...) the only problem i have is that for some reason the facial recognition feature isn't working and it states that the app will begin analyzing the photos when i'm not using the app and Mac is connected to a power source, but the thing is that i've tried everything, leaving the mac connected to a power source and leaving the app open doesen't do anything, leaving the mac connected to a power source and closing the app doesen't do the trick either (after a while the HDD stops spinning, so it's definitely not doing a thing), i'm at a loss, because facial recognition is really helful.
I've inserted a picture, it's in italian, but it basically states that mac will start analyzing the photos when i'im not using the app an the computer is connected to a power source
MacBook Air 13″, macOS 12.6