I am not receiving all text messages. Some come through and others don't. It is not specific to any contact. Sometimes if a person sends multiple messages I may get one and not the others.
I also can't send MMS messages at all.
Group messaging doesn't work well either. I often don't receive all messages in a group text.
I use Next SMS for my messaging, but I have tried switching back to the stock messaging app and it doesn't seem to resolve any of the issues.