diff --git a/package-lock.json b/package-lock.json
index 62e22cb3b..0b2dc4f6b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "bento_web",
-  "version": "3.1.1",
+  "version": "3.1.2",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "bento_web",
-      "version": "3.1.1",
+      "version": "3.1.2",
       "license": "LGPL-3.0-only",
       "dependencies": {
         "ajv": "^8.12.0",
diff --git a/package.json b/package.json
index 048361783..dffe9cf30 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "bento_web",
-  "version": "3.1.1",
+  "version": "3.1.2",
   "description": "Bento platform front-end",
   "main": "src/index.js",
   "dependencies": {
diff --git a/src/components/explorer/IndividualPhenotypicFeatures.js b/src/components/explorer/IndividualPhenotypicFeatures.js
index 9e885d2c4..cd51cf5dd 100644
--- a/src/components/explorer/IndividualPhenotypicFeatures.js
+++ b/src/components/explorer/IndividualPhenotypicFeatures.js
@@ -74,9 +74,9 @@ const IndividualPhenotypicFeatures = ({ individual }) => {
                 header: p.id,
                 key: p.id,
             }] : []),  // If there is just 1 phenopacket, don't include a header row
-            ...p.phenotypic_features.map((pf) => ({
+            ...(p.phenotypic_features ?? []).map((pf) => ({
                 ...pf,
-                key: `${pf.type.id}:${pf.negated}`,
+                key: `${p.id}:${pf.type.id}:${pf.negated}`,
             })),
         ]);
     }, [individual]);