diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1f4509b42..de34d6f3f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Changelog
 
+* Fix bug where app crashed if measurements JSON did not define thresholds ([#1802](https://github.com/nextstrain/auspice/pull/1802))
+* Fix bug where measurements display did not honor the default `measurements_display` ([#1802](https://github.com/nextstrain/auspice/pull/1802))
+
 ## version 2.56.0 - 2024/07/01
 
 
diff --git a/docs/introduction/install.rst b/docs/introduction/install.rst
index d99c2a86b..39355b980 100644
--- a/docs/introduction/install.rst
+++ b/docs/introduction/install.rst
@@ -36,7 +36,7 @@ If you look at the :doc:`release notes <../releases/changelog>` you can see the
 Install Auspice as a developer
 ==============================
 
-See `DEV_DOCS.md <https://github.com/nextstrain/auspice/blob/-/DEV_DOCS.md#developer-installation>__`.
+See `DEV_DOCS.md <https://github.com/nextstrain/auspice/blob/-/DEV_DOCS.md#developer-installation>`__.
 
 Testing if it worked
 ====================
diff --git a/src/actions/measurements.js b/src/actions/measurements.js
index ccdf1a9c7..bbdff7762 100644
--- a/src/actions/measurements.js
+++ b/src/actions/measurements.js
@@ -73,7 +73,7 @@ const getCollectionDisplayControls = (controls, collection) => {
   if (collection["display_defaults"]) {
     const {
       group_by,
-      measurement_display,
+      measurements_display,
       show_overall_mean,
       show_threshold
     } = collection["display_defaults"];
@@ -81,8 +81,8 @@ const getCollectionDisplayControls = (controls, collection) => {
     if (group_by) {
       newControls.measurementsGroupBy = group_by;
     }
-    if (measurement_display) {
-      newControls.measurementsDisplay = measurement_display;
+    if (measurements_display) {
+      newControls.measurementsDisplay = measurements_display;
     }
     if (typeof show_overall_mean === "boolean") {
       newControls.measurementsShowOverallMean = show_overall_mean;
diff --git a/src/components/measurements/measurementsD3.js b/src/components/measurements/measurementsD3.js
index a70025bac..a387e6fad 100644
--- a/src/components/measurements/measurementsD3.js
+++ b/src/components/measurements/measurementsD3.js
@@ -197,8 +197,9 @@ export const drawMeasurementsSVG = (ref, xAxisRef, svgData) => {
   drawStickyXAxis(xAxisRef, containerHeight, svgHeight, xScale, x_axis_label);
 
   // Add threshold(s) if provided
-  if (thresholds !== null) {
+  if (Array.isArray(thresholds)) {
     for (const threshold of thresholds) {
+      if (typeof threshold !== "number") continue;
       const thresholdXValue = xScale(threshold);
       svg.append("line")
         .attr("class", classes.threshold)