diff --git a/frontend/src/metabase/visualizations/lib/LineAreaBarRenderer.js b/frontend/src/metabase/visualizations/lib/LineAreaBarRenderer.js
index 893d5f7fdc551c338985ba6907c1f45f00be141c..b8b1657613928e0880d8d26356e9a6c14d308af0 100644
--- a/frontend/src/metabase/visualizations/lib/LineAreaBarRenderer.js
+++ b/frontend/src/metabase/visualizations/lib/LineAreaBarRenderer.js
@@ -684,41 +684,47 @@ function addTrendlineChart(
   const insights = rawSeries[0].data.insights || [];
 
   for (const insight of insights) {
-    if (insight.slope != null && insight.offset != null) {
-      const index = findSeriesIndexForColumnName(series, insight.col);
-      const seriesSettings = settings.series(series[index]);
-      const color = lighten(seriesSettings.color, 0.25);
-
-      const points = Math.round(parent.width() / TREND_LINE_POINT_SPACING);
-      const trendData = getTrendDataPointsFromInsight(insight, xDomain, points);
-      const trendDimension = crossfilter(trendData).dimension(d => d[0]);
-
-      // Take the last point rather than summing in case xDomain[0] === xDomain[1], e.x. when the chart
-      // has just a single row / datapoint
-      const trendGroup = trendDimension.group().reduce(
-        (p, d) => d[1],
-        (p, d) => p,
-        () => 0,
-      );
-      const trendIndex = charts.length;
-
-      const trendChart = dc
-        .lineChart(parent)
-        .dimension(trendDimension)
-        .group(trendGroup)
-        .on("renderlet", function(chart) {
-          // remove "sub" class so the trend is not used in voronoi computation
-          chart
-            .select(".sub._" + trendIndex)
-            .classed("sub", false)
-            .classed("trend", true);
-        })
-        .colors([color])
-        .useRightYAxis(yAxisSplit.length > 1 && yAxisSplit[1].includes(index))
-        .interpolate("cardinal");
-
-      charts.push(trendChart);
+    const index = findSeriesIndexForColumnName(series, insight.col);
+
+    const shouldShowSeries = index !== -1;
+    const hasTrendLineData = insight.slope != null && insight.offset != null;
+
+    if (!shouldShowSeries || !hasTrendLineData) {
+      continue;
     }
+
+    const seriesSettings = settings.series(series[index]);
+    const color = lighten(seriesSettings.color, 0.25);
+
+    const points = Math.round(parent.width() / TREND_LINE_POINT_SPACING);
+    const trendData = getTrendDataPointsFromInsight(insight, xDomain, points);
+    const trendDimension = crossfilter(trendData).dimension(d => d[0]);
+
+    // Take the last point rather than summing in case xDomain[0] === xDomain[1], e.x. when the chart
+    // has just a single row / datapoint
+    const trendGroup = trendDimension.group().reduce(
+      (p, d) => d[1],
+      (p, d) => p,
+      () => 0,
+    );
+    const trendIndex = charts.length;
+
+    const trendChart = dc
+      .lineChart(parent)
+      .dimension(trendDimension)
+      .group(trendGroup)
+      .on("renderlet", function(chart) {
+        // remove "sub" class so the trend is not used in voronoi computation
+        chart
+          .select(".sub._" + trendIndex)
+          .classed("sub", false)
+          .classed("trend", true);
+      })
+      .colors([color])
+      .useRightYAxis(yAxisSplit.length > 1 && yAxisSplit[1].includes(index))
+      .interpolate("cardinal");
+
+    charts.push(trendChart);
   }
 }
 
diff --git a/frontend/test/metabase/scenarios/visualizations/trendline.cy.spec.js b/frontend/test/metabase/scenarios/visualizations/trendline.cy.spec.js
index 228e2f6207bf36777172b8d8db4765e1f686ca5d..462b40ac5bd0bd3cd3541cb95d10450cb9dc6797 100644
--- a/frontend/test/metabase/scenarios/visualizations/trendline.cy.spec.js
+++ b/frontend/test/metabase/scenarios/visualizations/trendline.cy.spec.js
@@ -11,7 +11,7 @@ describe("scenarios > question > trendline", () => {
     cy.signInAsNormalUser();
   });
 
-  it.skip("displays trendline when there are multiple numeric outputs (for simple question) (metabase#12781)", () => {
+  it("displays trendline when there are multiple numeric outputs (for simple question) (metabase#12781)", () => {
     // Create question: orders summarized with "Average of Subtotal" and "Sum of Total" by CreatedAt:Year
     openOrdersTable();
     cy.icon("notebook").click();