The problem I have encountered when using Blender as a video editor is that when I set keyframes the values do not stay set. Instead all keyframes adjust to a value of 0.0.
The keyframes appear in the dope sheet and graph editor. The graph shows the curve between keyframes but there is no adjustment made to the movie or sound.
Am using Blender 2.8. This is my first time using Blender as a video editor. Also first time using stackexchange. Let me know if there is anything I can supply to help explain the issue further.
So this is a common problem and not obvious. You need to update the keyframes after setting the value, otherwise they revert back to there former state when the timline moves. To do this just hit the I key when hovering over the value control you want to key.
You can also use auto-keying, this is probably the behaviour you are looking for ... look for the Record symbol on the left of the transport bar.
This will automatically create a key for you for each property you change at the current position on the timeline.
Answered by Moog on December 14, 2020
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