li serve-sass not working

Hi,

I was working as usual, but suddenly the command li serve-sass stopped working.

You can see below what I have, but the status doesn't update at all when I change and save a .scss file.

[17:11:19] Loaded gulp tasks in: 3.26 s
[17:11:19] Using gulpfile ~/community/dropbox-community/gulpfile.js
[17:11:19] Starting 'skins-compile'...
[17:11:19] Starting 'watch-res-sass'...
[17:11:20] Finished 'watch-res-sass' after 163 ms
[17:11:20] Starting 'local-server'...
[17:11:20] Finished 'local-server' after 120 ms
[17:11:20] Server started http://localhost:9000
[17:11:25] Finished 'skins-compile' after 6.05 s
[17:11:25] Starting 'serve-sass'...
[17:11:25] Finished 'serve-sass' after 21 μs