I just heard from someone kai these two names shouldn’t be kept? Anything I’m missing?
It simple means one who is beautiful.
what's wrong with that?
Must be some Najamil/Najamila who is jealous :-p
No, seriously. They said Jamil and Jamila and even told me why. I just can’t remember 
I follow the hadith that simply says to have beautiful meaningful names. The names you are objecting beautifully conform the very hadith hence I find nothing wrong in them.
I have cousins with the last name of Jamil....nothing wrong with that?
never heard of any such thing....
if jamil and jamila r not allowed than waseem shud also not be allowed....
and also tayyab....
and similar names....
'Umar (ra) had a daughter called 'Asiya. Allah's Messenger (saw) changed her name to Jamila. (Sahih Muslim 5333)
i dont know about jamila, but any name that implies piety should not be kept because rasul :saw: changed the name of zainab 
barrah to zainab
Volume 8, Book 73, Number 212:
Narrated Abu Huraira:
Zainab’s original name was “Barrah,” but it was said’ “By that she is giving herself the prestige of piety.” So the Prophet changed her name to Zainab.