Brunch problem

I built a Phoenix project and started doing some css. I noticed that on every change, the brunch is loading files but does not reload the page. It breaks the whole css instead ( It does not even sees the css file. Tried writing in app.css , phoenix.css and even making my own css file. ) .
The first problem was I didn’t have enough watchers so I put as many as possible so the problem about watchers is gone but the question still stands. Why doesn’t brunch reload the css ?

It ‘does’ reload it, but phoenix sends the part-made empty file before it is fully written, when brunch then sets the information in the file ‘while’ phoenix is sending so it doesn’t send it. I just have to refresh the page then, never really looked much into the race condition beyond that.