Audio issue after export media encoder

Hello guys.

I'm using a sony a7 with a rode mic for my bike adventures.
When im recording a video and look at the preview on the camera the audio is synced.
But when im exporting the files from my card some clips are having audio issues, some have not.
The audio is more than 7 seconds earlier than the footage at the end of a clip in some cases.
All clips have the same export setttings.

Im not running other programs while exporting.

Export settings: Video 1920x1080 , 25fps, VBR, 1 controle, 10mbps, max 12mps, 
Audio AAC, 320 kbps, 48 khz, Stereo 

Il attached a file to show the problem.
Can someone help me out 🙂