Missing styles in merged-stylesheets.css

Hi guys,
I believe I have setup similar to sample Todos app: the project structure is the same, I have Less package installed.

I’m able to compile /client/main.less manually via “lessc main.less > main.css” and I see that all the styles included in the final main.css

The problem is what some of that styles are missing from the merged-stylesheets.css once I run my app.

What I am missing here?
Thank you!

did you figure out this problem by any chance?