I've set my save FR to 50fps. Yesterday I recorded 17 clips and only 5 of them have saved at 50fps. The majority are at 60fps.
The saving pattern during the day was 9 clips@60fps then 5@50fps then 3@60fps.
I was changing resolutions throughout but didn't touch any of the save settings at any time.
I was saving to both a USB drive and SD card.
Any ideas?