Input frame is not the in the configured hwframe context.

[ronag]

For some reason using npp filters can cause this error. Replacing scale_npp with scale_cuda makes the error go away.

ffmpeg -f lavfi -i "color=c=0x4d1a7f" -filter:v 'format=yuv444p,hwupload_cuda,transpose_npp=cclock,scale_npp=w=180:h=320,hwdownload,format=yuv444p' -f null -
ffmpeg version 5.1.3 Copyright (c) 2000-2022 the FFmpeg developers
  built with gcc 9 (Ubuntu 9.4.0-1ubuntu1~20.04.1)
  configuration: --disable-debug --disable-doc --disable-ffplay --disable-htmlpages --disable-manpages --disable-podpages --disable-txtpages --enable-cuda --enable-cuda-nvcc --enable-cuvid --enable-fontconfig --enable-gpl --enable-libaribb24 --enable-libass --enable-libfdk_aac --enable-libfreetype --enable-libmp3lame --enable-libnpp --enable-libopenjpeg --enable-libopus --enable-libsrt --enable-libvidstab --enable-libvpx --enable-libwebp --enable-libx264 --enable-nonfree --enable-nvenc --enable-nvdec --enable-openssl --enable-postproc --enable-shared --enable-version3 --enable-encoder=png --enable-decoder=png --extra-cflags='-I/opt/ffbuild/include -I/opt/ffbuild/include/ffnvcodec -I/usr/local/cuda/include/' --extra-ldflags='-L/opt/ffbuild/lib -L/usr/local/cuda/lib64 -L/usr/local/cuda/lib32/' --extra-libs=-ldl --extra-libs=-lpthread --prefix=/opt/ffbuild
  libavutil      57. 28.100 / 57. 28.100
  libavcodec     59. 37.100 / 59. 37.100
  libavformat    59. 27.100 / 59. 27.100
  libavdevice    59.  7.100 / 59.  7.100
  libavfilter     8. 44.100 /  8. 44.100
  libswscale      6.  7.100 /  6.  7.100
  libswresample   4.  7.100 /  4.  7.100
  libpostproc    56.  6.100 / 56.  6.100
Input #0, lavfi, from 'color=c=0x4d1a7f':
  Duration: N/A, start: 0.000000, bitrate: N/A
  Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 320x240 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> webp (libwebp_anim))
Press [q] to stop, [?] for help
Output #0, null, to 'pipe:':
  Metadata:
    encoder         : Lavf59.27.100
  Stream #0:0: Video: webp, yuv420p(tv, progressive), 1280x720 [SAR 27:64 DAR 3:4], q=2-31, 200 kb/s, 30 fps, 30 tbn
    Metadata:
      encoder         : Lavc59.37.100 libwebp_anim
[hwdownload @ 0x55b1afcec880] Input frame is not the in the configured hwframe context.
Error while filtering: Invalid argument
Failed to inject frame into filter network: Invalid argument
Error while processing the decoded data for stream #0:0