Problem SCSS / CSS

Good:
Until recently I used my SCSS style sheet, made the modifications and everything worked fine, they added me to my CSS stylesheet. But since this afternoon I apply changes in my SCSS and they are not added. However, if I modify my CSS sheet, they keep adding me again perfectly.
What could have happened?
I've been looking and I do not see error code anywhere.
Note: compiled with koala.

@font-face {
  font-family: 'webfontregular';
  src: url("../fonts/waterlily-webfont.woff2") format("woff2"), url("../fonts/waterlily-webfont.woff") format("woff");
  font-weight: normal;
  font-style: normal; }
html {
  font-size: 15px; }

/*Estilos bloque bienvenidos*/
.bienvenidos {
  background-color: blueviolet;
  background-size: cover;
  overflow: hidden; }

.logobrand {
  width: 35px; }

.boton3rayas {
  margin-top: 0.3rem; }

.navbar-fixed-top {
  background: #b5a7dc; }

.navbar-light .navbar-brand {
  color: #fdfb8e;
  font-size: 1.3rem;
  text-transform: uppercase; }

.navbar-toggler {
  font-size: 1.4rem;
  color: #fdfb8e; }

.navbar-light .navbar-nav .nav-link {
  color: #fdfb8e;
  text-align: center; }

.navbar-light .navbar-nav .nav-link:focus, .navbar-light .navbar-nav .nav-link:hover {
  background: #8a2be2; }

.navbar-light .navbar-nav .nav-link:focus, .navbar-light .navbar-nav .nav-link:hover {
  color: #fdfb8e; }

#menuprincipal {
  clear: both; }

.texto-bienvenido {
  color: yellow;
  margin-top: 7rem;
  font-family: "webfontregular", Arial, sans-serif;
  font-size: 2rem; }

.bienvenido2 p {
    color: black; }

.imaginarq {
  font-size: 4rem; }

.bienvenido2 {
  color: yellow; }

/*Estilos bloque quehacemos*/
.quehacemos {
  background-color: #fdfb8e; }

.quehacemos h4 {
    font-weight: bolder; }

.quehacemos .fa {
  font-size: 3rem;
  background-color: #fdfb8e; }

.quehacemos .fa {
  font-size: 3rem;
  color: blueviolet; }

/*Estilos quienes somos*/
.quienes {
    background-color: #eee; }

.conchi {
  border-radius: 50%; }

.cabeza {
  border-radius: 50%; }

.agustin {
  border-radius: 50%; }

.somosbotones {
    font-size: 1.7rem;
    color: blueviolet;
}
/*Estilos footer*/
.footer {
  background-color: cadetblue; }

.footer .fa {
  font-size: 35px; }

/*Estilos Media Query*/
@media (min-width: 768px) {
  #menuprincipal {
    clear: inherit; } }

/*# sourceMappingURL=estilos.css.map */