diff --git a/bin/web/js/layer.js b/bin/web/js/layer.js
index fa8712e..ca5be60 100644
--- a/bin/web/js/layer.js
+++ b/bin/web/js/layer.js
@@ -111,7 +111,11 @@ const Layer = function(tp, layerID, fontsAndAxes, autoInit = true) {
                             range: [axes[a].minValue, axes[a].maxValue],
                         });
                         if (typeof audio === 'object' &&
+                            typeof audio.getSavedMapping() === 'object' &&
+                            typeof audio.getSavedMapping()[this.id()] === 'object' &&
                             typeof audio.getSavedMapping()[this.id()][`fontVariationAxes.${axes[a].name}`] === 'object' &&
+                            typeof audio.getMapping() === 'object' &&
+                            typeof audio.getMapping()[this.id()] === 'object' &&
                             typeof audio.getMapping()[this.id()][`fontVariationAxes.${axes[a].name}`] === 'object' &&
 							tp.getPanel() !== null) {
                             doThese.push(() => {