Hey, I keep getting failures and weird behavior when using the preview rendering tool. I either get a message that says "Preview rendering failed, check your parameters." And when I click on 'show details' it says "Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead." But that only happens some of the time. If it does successfully render the preview, when you playback that portion of the rendered preview zone, it shows only a blank screen.

Does anyone know how to fix this problem? Sorry, I'm new to kdenlive, and I don't know what 'AVStream.codecpar' even is, or if there is just some setting that I need to change.

Windows 10
Version 19.08.1 of kdenlive (standalone version)

Hi there is a bug on zone rendering, i hope this will fixed soon ... https://invent.kde.org/kde/kdenlive/issues/365

bartoloni wrote:Hi there is a bug on zone rendering, i hope this will fixed soon ... https://invent.kde.org/kde/kdenlive/issues/365

Oh, OK. I wasn't sure if it was an issue with kdenlive itself or just something that I was doing wrong. Thank you for the answer. I'll probably just wait until they fix this bug before I continue learning kdenlive then.

Seems working on latest nightly, can you test?
https://binary-factory.kde.org/job/Kden ... y_mingw64/