The latest update has now made it so that enabling group mms won't stick. Have had to re-enable it a couple times a day since I updated. Anyone else? Solutions?
I just called sprint technical support and they fixed it. The person had to enable some update on my phone, then I rebooted my phone and she had to also update the voice and data config from the settings->celular networks->Carrier settings menu. Hope this helps.
:'(