diff --git a/react/src/FilePropertyDialog.tsx b/react/src/FilePropertyDialog.tsx
index 2c03d46..5ca8465 100644
--- a/react/src/FilePropertyDialog.tsx
+++ b/react/src/FilePropertyDialog.tsx
@@ -74,7 +74,7 @@ export default class FilePropertyDialog extends ResizeResponsiveComponent<FilePr
             fullScreen: false,
             selectedFile: props.selectedFile,
             hasSelection: false,
-            files: ["a", "b", "c", "d", "e", "f", "g", "h", "i", "j"]
+            files: []
         };
 
         this.requestFiles();
@@ -83,7 +83,15 @@ export default class FilePropertyDialog extends ResizeResponsiveComponent<FilePr
     private model: PiPedalModel;
 
     private requestFiles() {
-        this.model.requestFileList(this.props.fileProperty);
+        this.model.requestFileList(this.props.fileProperty)
+        .then((files) => {
+            if (this.mounted)
+            {
+                this.setState({files: files,hasSelection: this.isFileInList(files,this.state.selectedFile)});
+            }
+        }).catch((error)=>{
+            this.model.showAlert(error.toString())
+        });
     }
 
     onWindowSizeChanged(width: number, height: number): void {
@@ -118,11 +126,11 @@ export default class FilePropertyDialog extends ResizeResponsiveComponent<FilePr
 
     }
 
-    private isFileInList(selectedFile: string) {
+    private isFileInList(files: string[],file: string) {
 
         let hasSelection = false;
-        for (var file of this.state.files) {
-            if (file === selectedFile) {
+        for (var listFile of files) {
+            if (listFile === file) {
                 hasSelection = true;
                 break;
             }
@@ -131,7 +139,7 @@ export default class FilePropertyDialog extends ResizeResponsiveComponent<FilePr
     }
 
     onSelect(selectedFile: string) {
-        this.setState({ selectedFile: selectedFile, hasSelection: this.isFileInList(selectedFile) })
+        this.setState({ selectedFile: selectedFile, hasSelection: this.isFileInList(this.state.files,selectedFile) })
     }
 
     render() {
diff --git a/react/src/Lv2Plugin.tsx b/react/src/Lv2Plugin.tsx
index 2ff03a8..c8ffd06 100644
--- a/react/src/Lv2Plugin.tsx
+++ b/react/src/Lv2Plugin.tsx
@@ -130,6 +130,7 @@ export class PiPedalFileProperty {
             this.fileTypes = PiPedalFileType.deserialize_array(input.fileTypes);
             this.patchProperty = input.patchProperty;
             this.defaultFile = input.defaultFile;
+            this.directory = input.directory;
             return this;
         }
         static deserialize_array(input: any): PiPedalFileProperty[]
@@ -145,6 +146,7 @@ export class PiPedalFileProperty {
         name:   string = "";
         fileTypes: PiPedalFileType[] = [];
         patchProperty: string = "";
+        directory: string = "";
         defaultFile: string = "";
 
 };
diff --git a/src/PiPedalModel.cpp b/src/PiPedalModel.cpp
index 2b5d8fc..5e9c1fd 100644
--- a/src/PiPedalModel.cpp
+++ b/src/PiPedalModel.cpp
@@ -1736,5 +1736,11 @@ void PiPedalModel::SetSystemMidiBindings(std::vector<MidiBinding> &bindings)
 
 std::vector<std::string> PiPedalModel::GetFileList(const PiPedalFileProperty&fileProperty)
 {
-    return this->storage.GetFileList(fileProperty);    
+    try {
+        return this->storage.GetFileList(fileProperty);    
+    } catch (const std::exception & e)
+    {
+        Lv2Log::warning("GetFileList() failed:  (%s)", e.what());
+        return std::vector<std::string>(); // don't disclose to users what the problem is.
+    }
 }
diff --git a/src/PiPedalUI.cpp b/src/PiPedalUI.cpp
index ac27669..6f0d18a 100644
--- a/src/PiPedalUI.cpp
+++ b/src/PiPedalUI.cpp
@@ -104,10 +104,10 @@ PiPedalFileProperty::PiPedalFileProperty(PiPedalHost *pHost, const LilvNode *nod
         nullptr);
     if (directory)
     {
-        this->directory_ = name.AsString();
+        this->directory_ = directory.AsString();
         if (!IsDirectoryNameValid(this->directory_))
         {
-            throw std::logic_error("Pipedal FileProperty::director must have only alpha-numeric characters.");
+            throw std::logic_error("Pipedal FileProperty::directory must have only alpha-numeric characters.");
         }
     }
     else
@@ -181,6 +181,7 @@ bool pipedal::IsAlphaNumeric(const std::string&value)
 
 bool PiPedalFileProperty::IsDirectoryNameValid(const std::string&value)
 {
+    if (value.length() == 0) return false;
     return IsAlphaNumeric(value);
 }
 
diff --git a/src/Storage.cpp b/src/Storage.cpp
index cd6f68b..6b55303 100644
--- a/src/Storage.cpp
+++ b/src/Storage.cpp
@@ -1418,16 +1418,21 @@ std::vector<std::string> Storage::GetFileList(const PiPedalFileProperty&fileProp
     std::vector<std::string> result;
     std::filesystem::path audioFileDirectory = this->GetAudioFilesDirectory() / fileProperty.directory();
 
-    for (auto const&dir_entry: std::filesystem::directory_iterator(audioFileDirectory))
-    {
-        if (dir_entry.is_regular_file())
+    try {
+        for (auto const&dir_entry: std::filesystem::directory_iterator(audioFileDirectory))
         {
-            auto &path = dir_entry.path();
-            if (fileProperty.IsValidExtension(path.extension().string()))
+            if (dir_entry.is_regular_file())
             {
-                result.push_back(fileProperty.directory() / path.filename());
+                auto &path = dir_entry.path();
+                if (fileProperty.IsValidExtension(path.extension().string()))
+                {
+                    result.push_back(fileProperty.directory() / path.filename());
+                }
             }
         }
+    } catch(const std::exception&error)
+    {
+        throw std::logic_error("Directory not found: " + audioFileDirectory.string());
     }
 
     return result;