Hybrid 2022.03.20.1: No module named 'vsdpir'

[Dan64]

my opinion is that if the preview window is able to show the movie, the encoder should be able to work.

In general I agree and here it does work without a problem.

-> no clue, why it's not working for you, may be answering the questions I posted helps figuring out whats going on.

In this case the Y4M header is the following:  Y4M header: YUV4MPEG2 C420p10 W1280 H712 F25:1 Ip A0:0 XLENGTH=1485

looks fine to me, but is that the header where the encoder complained?

Cu Selur

yes, you can see it in light gray in the pictures above, after the sentence: Encoder started.