I can reproduce this issue only when the content provider (camera-app) is not running.
Try launching the app (camera or gallery) and leave it open before composing a new mms.
I guess the app is loosing focus when the content provider app is terminated.
I can reproduce this issue only when the content provider (camera-app) is not running.
Try launching the app (camera or gallery) and leave it open before composing a new mms.
I guess the app is loosing focus when the content provider app is terminated.