So yesterday, I upgraded to the GM release. Did a clean install. While testing, everything seems fine except for one thing. I can text my girlfriend, but don't get any of her texts in return. I'm on AT&T, she's on T-Mobile I have an iPhone 5, she has a Galaxy S5 She gets all my messages, I get none of hers It works fine with other T-Mobile people, even those on her plan It works fine with everyone else I've tested with This started last night (sometimes our messages get "stuck", but never for this long) I'm a new iOS developer as of a few months ago, so this is a legit install. I also never messed with any of the betas, so this is my first iOS8 install. And for those really picky people, yes I'm a developer (~25 years now) and understand what "beta" and "GM" and such mean. Any ideas?