Hello all, Ever since receiving my iPhone 6s last week, I cannot receive any group messages (mixture of iPhone and Android users). I previously had an iPhone 6 and had no issues at all until switching. I've also gone to the ATT to obtain a new SIM (after just inserting my old one into the new phone). When I do get the messages, they are 2-3 days late and in completely random order. Individual messages, including iMessages come through just fine. Group iMessages are fine as well. Anyone else experience this issue? I've done network resets and restarts plenty of times. At this point I may just restore and start fresh to see what happens but would like to avoid that since I have a lot of data backed up. Any guidance would be appreciated, thanks.