Since our last upgrade (yesterday), we see this at the bottom of the page.
Syntax error: Invalid CSS after "...er_background: ": expected expression (e.g. 1px, bold), was "#nil !default;"\A on line 5 of theme_variables.scss\A from line 1 of custom stylesheet
We haven’t changed our CSS, so not sure it’s on our end. Where can I see this file and see what is happening?