Trying to deinterlace with Bob NVEnc; job crashes

[antoniu200]

So if no CUVID decoder can be used, what then?

Hybrid reverts to the normal decoder or simply doesn't use CUVID. Since the CUVID option is unavailable, the user won't be able to choose CUVID and everything should be under control.

I know, question is why doesn't ffmpeg get that it's a decoder?

Not sure, but it is possible FFmpeg might not have a very clear way of specifying a decoder and, as such, it might need the -c:v option two times: in the first is specified the decoder and in the second is specified the encoder.
That's my 2 cents, but I might be wrong.

EDIT: It's possibe this might be a Stackoverflow question, because I cannot identify anything in the documentation that can help.