h264_nvenc ffmpeg pink parts problem

[kira90]

ffmpeg.exe -y -i aa.mkv -c:v h264_nvenc -cq:v 21 -rc:v vbr -preset:v fast -b:v 0 -maxrate:v 5000K -bufsize:v 5000K -pix_fmt yuv420p -c:a aac aa2.mp4
Result

[Attachment 74697 - Click to enlarge]

But when i use konayuki plus gui with same setting there are no pink parts. How can i take result same like konayuki plus gui?

Konayuki result

[Attachment 74698 - Click to enlarge]

Here is Koyayuki log

File=C:\Users\kira\Downloads\[SubsPlease] Toaru Ossan no VRMMO Katsudouki - 04 (1080p) [8B97966D].mkv
V=2.0.7213.1875
API=2021.01.28.19.02.01
Encode_Time=5.11.2023 16:58:11
Encoder=6
Preset=2
Quality=21
Resize=0
60FPS=0
Line_Darkener=0
Sharpen=0
Warp_Sharp=0
Noise_Remover=0
Brightness=100
Contrast=100
Saturation=100
Debanding=0
Source_Vol=100
Intro_Vol=100
EndCard_Vol=100
Logo_Remover=False
ffmpeg version 4.3.1-2021-01-26-full_build-www.gyan.dev Copyright (c) 2000-2021 the FFmpeg developers
built with gcc 10.2.0 (Rev6, Built by MSYS2 project)
configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-libsnappy --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
libavutil 56. 51.100 / 56. 51.100
libavcodec 58. 91.100 / 58. 91.100
libavformat 58. 45.100 / 58. 45.100
libavdevice 58. 10.100 / 58. 10.100
libavfilter 7. 85.100 / 7. 85.100
libswscale 5. 7.100 / 5. 7.100
libswresample 3. 7.100 / 3. 7.100
libpostproc 55. 7.100 / 55. 7.100
Guessed Channel Layout for Input Stream #0.1 : stereo
Input #0, avisynth, from 'C:\ProgramData\Konayuki Container\tmp\a_3117dafbd970e5a42e81eb176d4c7dbf.a vs':
Duration: 00:23:37.44, start: 0.000000, bitrate: N/A
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 1920x1080, 23.98 fps, 23.98 tbr, 23.98 tbn, 23.98 tbc
Stream #0:1: Audio: pcm_f32le, 44100 Hz, stereo, flt, 2822 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (h264_nvenc))
Stream #0:1 -> #0:1 (pcm_f32le (native) -> aac (native))
Press [q] to stop, [?] for help
Output #0, mp4, to 'C:\ProgramData\Konayuki Container\tmp\f_3117dafbd970e5a42e81eb176d4c7dbf.m p4':
Metadata:
comment : V=2.0.7213.1875 / API=2021.01.28.19.02.01 / Encode_Time=5.11.2023 16:58:11 / Encoder=6 / Preset=2 / Quality=21 / Resize=0 / 60FPS=0 / Line_Darkener=0 / Sharpen=0 / Warp_Sharp=0 / Noise_Remover=0 / Brightness=100 / Contrast=100 / Saturation=100 / Debanding
encoder : KONAYUKI PLUS
Stream #0:0: Video: h264 (h264_nvenc) (High) (avc1 / 0x31637661), yuv420p(progressive), 1920x1080, q=-1--1, 2000 kb/s, 23.98 fps, 24k tbn, 23.98 tbc
Metadata:
encoder : KONAYUKI PLUS h264_nvenc
Side data:
cpb: bitrate max/min/avg: 0/0/2000000 buffer size: 4000000 vbv_delay: N/A
Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s
Metadata:
encoder : KONAYUKI PLUS aac
video:417789kB audio:22645kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.181913%
[aac @ 000001c7fe6ca9c0] Qavg: 705.653

[poisondeathray]

But when i use konayuki plus gui with same setting \

Not the same settings. Preset=2 is medium, but you're using -preset:v fast

ffmpeg -h encoder=h264_nvenc

.
.
slow 1 E..V....... hq 2 passes
medium 2 E..V....... hq 1 pass
fast 3 E..V....... hp 1 pass
.
.
.

[kira90]

ffmpeg.exe -y -i aa.mkv -c:v h264_nvenc -cq:v 21 -rc:v vbr -preset:v medium -b:v 0 -maxrate:v 5000K -bufsize:v 5000K -pix_fmt yuv420p -c:a aac aa2.mp4
still got same bad result

https://prnt.sc/f9mdaKIRhF4t