[TheBundo]

If it's actually an urgent message, why not use the phone? If text messaging had between invented before phone calls, it would be laughably old fashioned by now. I know that doesn't solve your issue, and I agree with the others that it's an app or the ROM, or an installation problem with the ROM. Are you doing backups periodically and saving them sequentially elsewhere? You might want to try and roll back if you have done that.