Why do all my webm formulas not work anymore on 4chan and say invalid stream

Here are my formulas

NO SOUND
ffmpeg -i "file" -ss 00:00:00.000 -to 00:15:11.000 -c:v libvpx -crf 4 -b:v 3072*1024*8/duration*0.975 -vf scale=640:-1 -an outputname.webm

FOR SOUND
ffmpeg -i "file" -ss 00:00:00.000 -to 00:00:00.000 -c:v libvpx -c:a libvorbis -crf 4 -b:v 3072*1024*8/duration*0.975 -vf scale=640:-1 Outputname.webm


FOR SUBTITILES
ffmpeg -i "file" -ss 00:00:00.000 -to 00:00:00.000 -c:v libvpx -crf 4 -b:v 3072*1024*8/duration*0.975 -crf 4 -filter_complex "scale=-1:480,subtitles='file'" -an aidssss.webm


FOR SOUND AND SUBTITLES
ffmpeg -i "file" -ss 00:00:00.000 -to 00:00:00.000 -c:v libvpx -crf 4 -b:v 3072*1024*8/duration*0.975 -crf 4 -filter_complex "scale=-1:640,subtitles='file'" -sn aidssss.webm