Blender Shifts Audio Sometimes I apologize for the lack of information; I am new to Blender and am unsure why this is happening. I recently started using Blender for video editing as I wanted an open-source video editor. In general, it does an amazing job. I keep running into a big issue with is causing me not to use it, though.
When editing clips, sometimes, for no reason, Blender moves the audio track from the position where I clipped it. For example, if I have a video where someone is talking, and I clip just one scene from their speech and then edit other clips and come back to that scene, the audio would have shifted to a different point in the video where it was split.
I have no idea why this is happening, and it is driving me crazy. I just spent all day on something and didn't even want to restart as this is the second time it has done this. Does anyone know what may be causing this? I am on Blender 2.90. I do have av-sync on.
This could be how I am using, but I am just so new to Blender I have no idea.
SOLUTION:
Frame rate! When I was importing video clips from different sources it skewed the frame rate, use handbrake to fix it.
The solution to this issue is to make sure you use consistent frame rates. One of the videos I pulled in changed the frame rate from 30 FPS to a custom frame rate which screwed the other clips. Setting the frame rate back to 20 FPS fixed this issue for me. I know you can use handbrake to set all of your videos to the same frame rate; however, if you are like me and just want a simple solution of
setfps &lt;video-name&gt; &lt;frame-rate&gt;

or at least a handbrake-like program that uses mpv for previews instead of VLC, I am unsure what program to use.
As an update, you can use FFmpeg to reencode a framerate!