After system update to version 3.7.4 theme data is not available when combining sccs files

After system update to version 3.7.4 theme data is not available when combining sccs files.

layout:

theme settings:

fields:
theme_color:
type: radio
label: Theme color
assetVar: ‘theme_color’
cssClass: inline-options
span: row
spanClass: “col-sm-12”
options:
aqua: aqua
green: green
leaf: leaf

If in style.scss
background-color: $theme_color;

Error:
ScssPhp\ScssPhp\Exception\CompilerException: Undefined variable $theme_color

If in style.scss
background-color: @theme_color;

Error:
ScssPhp\ScssPhp\Exception\ParserException: parse error: failed at `background-color: @theme_color;

I can’t seem to reproduce this… it is working normally on my end.