diff --git a/index.html b/index.html
index 9cd182ac..42db850c 100644
--- a/index.html
+++ b/index.html
@@ -7988,7 +7988,7 @@
     <script src="config/heightmap-templates.js"></script>
     <script src="config/precreated-heightmaps.js"></script>
     <script src="modules/heightmap-generator.js?v=1.99.00"></script>
-    <script src="modules/ocean-layers.js?v=1.99.00"></script>
+    <script src="modules/ocean-layers.js?v=1.99.07"></script>
     <script src="modules/river-generator.js?v=1.99.05"></script>
     <script src="modules/lakes.js?v=1.99.00"></script>
     <script src="modules/biomes.js?v=1.99.00"></script>
@@ -8057,7 +8057,7 @@
     <script defer src="libs/rgbquant.min.js"></script>
     <script defer src="libs/jquery.ui.touch-punch.min.js"></script>
     <script defer src="modules/io/save.js?v=1.99.00"></script>
-    <script defer src="modules/io/load.js?v=1.99.05"></script>
+    <script defer src="modules/io/load.js?v=1.99.07"></script>
     <script defer src="modules/io/cloud.js?v=1.99.00"></script>
     <script defer src="modules/io/export.js?v=1.99.00"></script>
   </body>
diff --git a/modules/io/load.js b/modules/io/load.js
index 85ac2982..81786374 100644
--- a/modules/io/load.js
+++ b/modules/io/load.js
@@ -651,6 +651,17 @@ async function parseLoadedData(data, mapVersion) {
         p.removed = true; // remove incorrect province
       });
 
+      pack.routes.forEach(({i, points}) => {
+        if (!points || points.length < 2) {
+          ERROR &&
+            console.error(
+              "Data integrity check. Route",
+              i,
+              "has less than 2 points. Route will be ignored on layer rendering"
+            );
+        }
+      });
+
       {
         const markerIds = [];
         let nextId = last(pack.markers)?.i + 1 || 0;
diff --git a/modules/ui/layers.js b/modules/ui/layers.js
index 39bc39d3..23fc836d 100644
--- a/modules/ui/layers.js
+++ b/modules/ui/layers.js
@@ -1636,7 +1636,8 @@ function drawRoutes() {
   const routePaths = {};
 
   for (const route of pack.routes) {
-    const {i, group} = route;
+    const {i, group, points} = route;
+    if (!points || points.length < 2) continue;
     if (!routePaths[group]) routePaths[group] = [];
     routePaths[group].push(`<path id="route${i}" d="${Routes.getPath(route)}"/>`);
   }
diff --git a/versioning.js b/versioning.js
index 368a4924..79db692e 100644
--- a/versioning.js
+++ b/versioning.js
@@ -1,7 +1,7 @@
 "use strict";
 
 // version and caching control
-const version = "1.99.06"; // generator version, update each time
+const version = "1.99.07"; // generator version, update each time
 
 {
   document.title += " v" + version;