If the Less package is enabled, it also seems to provide completions for properties and values in CSS files, causing duplicates to appear there: <img width="361" alt="Schermafbeelding 2023-07-22 om 12 29 37" src="https://github.com/SublimeText/Less/assets/2543659/bb6a83ef-2819-42f6-91ac-678f6ea7d48d"> - Less package 3.0.2 - ST 4150 (dev channel)