Ok, I just ran some test and it is only the 1080 60P resolution and frame rate that has this issue. None of the other frame rates or 4K has this issue. Strange. Edit: I did format the card in my PC and then again in the I2. No change.
Thanks. The little I2 flies great now that I have it dialed in. Yes, I have tried the Sony card that came with the I2 and my Sandisk cards. I just finished running a test with H.265, but windows 10 does not support it any longer. I doubt that it would make a difference. The funny thing is it doesn't have any issue with 2.7K @ 60 or 47 fps. In 1080 119, 60 and 47 fps are totally unusable. Looking at the bit rates for each resolution it is pretty clear that DJI just dropped the ball and went with a lower bit rate that just isn't fast enough for these frame rates.
Sorry I haven't gotten back to you Michael. I have been in NC on a couple shoots for the last week. I decided to not go with the P4P as it is just too limited. I will send you an email tomorrow about the I2.