Iphone not recieving group texts from android

My iphone 4 gets normal messages from android phones but for some reason does not recieve text messages from android in group messaging. Whenever there is an android user in a group message i appear to be in the group but do not recieve any messages from anyone. Can anyone leave any suggestions on how to fix this. 

sir, your problem is the iphone, so trade it in and get  a moto g (4,5 1.2ghz 5mp camera) its simply a much better device. regards everybody

I am fairly this was a known problem a few OS versions ago. you might want to consider updating the OS if you can.