Another year has gone since the last post. I still got the same issue.
In CS4, my 8 pixels on the edge of FLV will be stretched.
In CC, they will be replaced by pure black.
My resolution is 1240×600, not a weird resolution compared with Rob Dupuis’s setting. But I know it’s not a standard res.
I currently think, this is purely FLV’s problem, and AE doesn’t do a good job too.
But I also noticed that, if it’s not an FLV in my comp, then most of the time I can render an FLV correctly. So use it as an output, but not an input, will get around the problem.
Hope that helps.