Hi everybody! I haven't found an answer to my problem anywhere on the interwebs so I decided to share it with you in case you experience the same issue. Yesterday I was shooting video for the first time with OMD. When I got home I realised that about an hour of valuable footage is ruined by random flicker and exposure changes. I tried everything in the morning: AEL, full manual mode etc. but nothing would help. The solution is to switch off auto-grading. Surprise! It isn't that easy in video mode so I had to switch to Av and change it from the SCP. I am considering saving different MySets for stills and videos. And maybe one for tripod as well.