which versions are you using (SonarQube, Scanner, Plugin, and any relevant extension)
what are you trying to achieve
Scan the SCSS/CSS in *.vue files. Sonar reports invalid pseudo-class selector when it encounters the Vue :deep pseudo-class selector (css:S4659). See Vue 3 pseudo-class selectors SFC CSS Features | Vue.js
what have you tried so far to achieve this
Create a valid .vue file with Vue 3 containing valid SCSS using Vue’s :deep pseudo-class selector. Sonar reports bad pseudo-class selector.