Gulp sass call in two different tasks?

Question

gulp.js

Hello!
The situation is this - in the gallp you need to separately compile the code into different files.
https://prnt.sc/j4tnjk
I don’t think for a long time I created another additional task that will look behind _main-style.scss and compile all the css folder
But the problem is that galp does not want to work correctly while there is a line in the second task sass-ohm. If you remove .pipe(sass({outputStyle: 'expanded'})) everything works, but without sass itself it's of little use)