Verizon LG V20 on AT&T

Hey everyone, I need a little help if possible. I have an unlocked Verizon LG V20 that I attempted to put on my line. Switched an active Sim card and placed it in to the V20 and immediately saw data. I changed the APN to the NXTGEN one that is online. LTE went away and I had "H" which is I assume, 4G. Attempted to send a text and was successful but I can't receive any text or picture messages. Wondering if anyone has had any luck with this in the past. Thanks in advance