I faced one issue with the zoom button (+). Usually I'm using it to confirm, that the focus is set correctly. When I pushed it the first time, live view was getting gray and it flickered somehow. By pushing the button a second time, this issue was gone and I could see a clean picture. So my first question is, why is the behaviour different between the first and the second push?
And my main issue was, when I started the recording in zoomed condition my camera hung so I had to remove the battery. Usually camera returns to normal view and starts the recording normally.
So procedure to reproduce is: - Push zoom button - Push recording - Camera frozen (by the way I recorded in mlv mode)