A few weeks ago, my family and myself upgraded our phones to the S5. Everything was fine with them until today. Today was the first day I noticed anyways. My dad has an S5 and I've been able to receive his texts and send them to him as does my mother's phone. However, whenever I text my mom, the text is sent, but she doesn't get it on her phone. And the same thing happens when she texts me. There have even been times where she's called me and it'll go through the ringing process, but my phone will never show that she's calling me or has called me, however that's just been a rare occurrence.
Our phones are updated as of today from software, to PRL, to profile. Thanks for the help in advance!