My Evo would do that using GO SMS, but my S3 hasn't done it yet. I think it's when you're in a bad reception area....Lord knows my Evo signal got bad before it expired.
I'm now having this issue with Galaxy s4 on verizon
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I have this problem with one specific contact and no other. Always says 'failed', in red, when I send her a message, but the message is always received. I have been searching the forums for months but never found a sensible answer.
The only other occurrence of the problem is if I send a message to myself.