When will you fix the bug with the Error display effect on the “placebo”（or “9”） preset?

[jiangzemin-xudamin]

I don't know why this problem has arisen.
Maybe it's not fixed yet? Maybe there's a problem with the version I downloaded?
uvg266 VVC v0.8.1-2d2301c
https://www.mediafire.com/file/rqs8q57j8l4mv6y

md output
md temp
for %%a in (*.mkv *.mp4 *.webm *.mov *.avi *.rm *.rmvb *.flv *.3gp *.wmv) do (
md ".\temp\%%~na"
.\ffmpeg -hide_banner -i "%%~sa" -map 0:a:0 -vn -sn -c:a pcm_s32le -threads 32 -strict -2 -ac 2 -f wav - | .\exhale a ".\temp\%%~na\0.m4a"
.\ffmpeg -hide_banner -loglevel error -i "%%~sa" -map 0:v:0 -an -sn -pix_fmt yuv420p -strict -2 -f yuv4mpegpipe - | .\uvg266 -i - --input-file-format y4m --owf 58 --threads 32 --qp 35 --preset 9 -o ".\temp\%%~na\vvvv.266"
mp4box -add ".\temp\%%~na\vvvv.266" ".\temp\%%~na\mmmm.mp4"
mp4box -add ".\temp\%%~na\0.m4a" ".\temp\%%~na\mmmm.mp4"
.\ffmpeg -hide_banner -n -i ".\temp\%%~na\mmmm.mp4" -map 0:v -c:v copy -map 0:a -c:a copy ".\output\%%~na.mkv"
)
pause
rmdir /s/q temp
echo ————!!!Conversion completed!!!"————
pause

[jiangzemin-xudamin]

When the preset is "veryslow" (8), the display effect is normal.