Looking at the debug output and the call that is used:
Seems like ffmpeg has a problem with the naming of your folder on your system:
-> My guess is that renaming that folder might fix the issue.
Cu Selur
Ps.: In case that doesn't work update to the latest version and try again.
"F:\PROGRA~1\Hybrid\64bit\ffmpeg.exe" -y -loglevel fatal -threads 4 -i "F:/# Backup/Coisas para Televisão Fik & Cinema4D/Roubou Dinheiro/20 Anos Roubou Dinheiro/loop%04d.png" -frames:v 74 -an -sn -vsync 0 -vf zscale=rangein=full:range=full -pix_fmt yuv420p -f rawvideo - | "F:\PROGRA~1\Hybrid\64bit\x264.exe" --pass 1 --bitrate 1033 --profile main --level 4.0 --bframes 0 --qcomp 0.5 --no-mbtree --weightp 1 --aq-mode 0 --sar 1:1 --non-deterministic --range pc --stats "F:\#BACKU~1\COISAS~1\ROUBOU~1\20ANOS~1\loop0000_18_28_24_2710_01.stats" --demuxer raw --input-res 960x720 --input-csp i420 --input-depth 8 --fps 30 --output-depth 8 --output NUL -
F:/# Backup/Coisas para Televisão Fik & Cinema4D/Roubou Dinheiro/20 Anos Roubou Dinheiro
Cu Selur
Ps.: In case that doesn't work update to the latest version and try again.