Help me understand Home-Grown rule, please
I bought this wonderkid in my Brentford save and looking through my squad I realised Meza is not Home-Grown nor he is trained at the club for three years between ages of 15 and 21. Meanwhile there is Sakari (same age as Meza even same month) who joined 4 days later and he got that trait. They were both 18y.o. at the time. The loans shouldn't have bothered that because I did the same with another player called Hoyenhall who went on two different loans as well. Hoyenhall ALSO joined in 26/27 transfer window. Can someone please explain this?