Render and Replace. "Transcode Failure: Unable to Match Video Aspect"

[Andre.Cianfa]

Hi everyone, I'm working on a sequence that contains a few clips horizontally and vertically flipped and played in reverse. Considering that when I play the sequence it lags a lot, I tried to use the "Render and Replace" function on the clips concerned, but every time Adobe Premiere gives me this error: "Transcode Failure: Unable to Match Video Aspect". It gives the same error even when I try to apply "Render and Replace" to a clip just imported in the timeline and without any effect. Does anyone have an idea of what might be causing the error?
Thank you very much. Bye.

[Jeff Bellune · Accepted solution]

Instead of Render and Replace, go to Sequence>Render In to Out.

Render and Replace actually replaces your source footage with the rendered version, and that rendered version is then re-rendered during Export.

Render In to Out just renders preview files for use in the timeline to make your editing go faster, which is what I think you want.

[Andre.Cianfa]

Thank you very much!! Yes, the function of "Render In to Out" is really what I was looking for. 

[Stormflora]

A bit late to comment, but I just had to come and mention that this tip saved me so much time and effort. I cannot believe I never knew about this trick before. Thank you so, SO much!!

[Mr29189296ao69]

Thanks, just what i was looking for too. watched a video on youtube that said render and replace but not nearly as good as this one!

[Michael Grenadier]

but in some circumstances, render and replace is the way to go.  It locks in the "render" so that you won't lose the render if you accidentally change any parameters for the clips and if I remember correctly, you can move the clip around, etc.  So it might make sense to investigate this further to see why this is not working.