Corrupt MPEGHD422 files

Shooting job for the last 3 days, on Sony FS7, 1080/30p recording on 128GB "G" cards.  On two different clips, both about 2 to 21/2 hrs in length, on two different days and I think two different cards the clips are corrupt.  When played in Premier Pro CC, newest version, they start with a bright red, solid frame that goes on for about 10 seconds, then I get video of what we were shooting, but no sound. 

I put the clips in Catylist Brouse and they play fine as do they in Edit Ready.  I did a transcode to ProRes 422 in Edit Ready and the clip is fine and as expected...audio and video.  Anyone ever run into this?

Also one more note and I have no idea if this is any way connected to the issue, but ur roducer was using a PC Laptop and wasn't too swift in handling video files and he did his transfer first before i could do it on a Mac.  Is there any way the files could have been corrupted in the PC before I got to them with the MAC?

Thanks...Jim Watt