I’m puzzled because I haven’t been able to repro the raspivid behavior.
Couple of questions:
Assuming you have an iPad etc., have you upgraded the Sensor firmware?
Have you tried a different pi power supply? What’s the output current of the one you’re using?
Have you tried running with the sensor plugged in to its power supply?
Do you happen to have a second rpi 2 board to test on?
By the way, I ordered a pi 3 today and will test when it arrives.