Rendering of [file] crashed

When I try to render something with Kdenlive, it says this:

Rendering of [file path] crashed

[gif @ [compute memory number]] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead. [swscaler @ [computer memory number]] Warning: data is not aligned! This can lead to a speed loss


I can't address the root cause, but unchecking "parallel processing" before rendering solved the issue in my case