Hi Guys 
  
Wonder if you can help this is a very strange one!?  running a time lapse on my GH4 settings were at 3 second interval, A mode  and small jpeg. 
  
There's some inconsistency between the frames recording ? I expected 20 images on the card for 3 second interval per minute however some have recorded at only 10 files per minute? thus slowing and speeding the time lapse up and down? 
  
I have attached two screen shot of the files? 
  
and have also uploaded a small clip of the Timelaspe you can notice it clearly at 15 seconds on the TC 
  
  
		 
  
  
Hope you can help thanks Paul