Doesn't Scan the whole text file

[deeydos]

i had 400 subdomains in a text file i filtered it with httpx -sc -title > newdomains.txt and stored them in new text file
when i checked the length of newdomains.txt with wc -l newdomains.txt
they were only 197
and it missed more than half of subdomains why is that

[MetzinAround]

Do you have any more information about what happened? knowing what both wordlists look like might help.

Did the output have a variety of codes or only 200s?