title: stylesheet_pack_tag not generating any output, although the CSS file is present in the packs directory
body: <p>With a recent update of Rails, the <code>stylesheet_pack_tag</code> of our VueJS client application stopped producing output. Webpacker <strong>does</strong> generate the CSS file in the <code>/public/packs</code> folder (next to the JS file and others). The <code>javascript_pack_tag</code> statement works fine, but somehow the <code>stylesheet_pack_tag</code> remains defunct. What am I possibly overlooking? </p>