Hello there. Both me and my GF have iPhones and we are used to use iMessages as our primary messaging system. Until recently, if one of us is without Internet (WiFi, 3G, 4G, whatever) the sender would see his/hers iMessages converted to SMS (green bubble) and the message would be delivered the same and almost instantly.. Now... All of the sudden, this behaviour started to work randomly or, in case of working, taking too much time to deliver as SMS (3-4-5 minutes). Now, it either converts to SMS or the recipient receives the iMessage when gets access to Internet. We can just press the blue bubble not delivered and force to send as Text, but since this would work automatically i wonder if i can do something to make it work again 100% of the times. P.S. - I have the SMS relay active on my iPhone to my Mac.