There are a couple threads on this subject but they are all little detail and dead. The links below describe in detail this bug. Is anyone else experiencing/fixed this issue? I am currently running a Tasker task to disable wifi when my screen goes off, which lets calls/sms in most of the time. Every now and then I have to make a call to force texts to come through still.
There seems to be a lot of people with the issue but nothing is coming of it.