My DJI Mini flew and recorded video perfectly for several flights, then this problem appeared.  The DJI app keeps displaying a message indicating that storage is being switched to the SD card.  I press OK but the message keeps coming up repeatedly and video stops recording.  I have plenty of memory on my phone and on my SD cards.  Here is a video that shows what happens . . . https://www.youtube.com/watch?v=0ZJfHZpWVTM&feature=youtu.be

Is this a known issue?

  

I have the same problem. Was your card new?

My card memory (new):

128GB SD Sandisk Extreme Pro V30

Hey dirado19,

I connected with DJI tech today and it looks like the issue was the SD card in the drone after all.  I swapped the card out of the Mini for one I had been using in my Phantom. I've only done one test flight, but so far the SD Card space message has not returned.  They were the same brand and speed, so your guess is as good as mine.  The Mini is apparently particular about which cards will work.  I went ahead and ordered a new card off the DJI list, so we'll see what happens.