Keyword syntax highlighting does not respect changes for "if" and other keywords

When changing the color or any attribute for the keywords, the following ones are not changing their appearance:

• if
• return
• const
• auto
• this
• emit
• static_cast
• else
• case
• switch
• ...etc.

The issue (and other highlighting bugs similar to this) get obvious when a color scheme copy is created, then all the categories are selected and the color attributes get unset. Many parts of the code will keep their original color.

When a project is then closed and opened again, all the code is shown correcly with the unset color attributes.

Update: Executing File / Reload "FILENAME" works too, the changes get visible after that as well.