start incorrect

[xmale11]

Hello,
Thanks for creating this amazing tool.
I have tried to cut/trim the beginning of a video file, however, it does not trim to the location I indicated in the timeline (it always add few seconds before, around 11 seconds) The format detected of the file is MPEG-4 Part 14.
I am not sure where the issue from, and it may be because of the video files themselves!
I am using Mac.

Thanks for the support.

[xmale11]

Oh I noticed that the issue related to the keyframe settings. If we can avoid the blank start at the bigenning that would be great.