diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 75ec43bd..afae231f 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
+    xmlns:tag="http://schemas.android.com/apk/distribution"
     package="io.neurolab">
 
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
@@ -70,7 +71,9 @@
         <activity
             android:name=".activities.MeditationActivity"
             android:label="@string/meditation_activity_label" />
-        <activity android:name=".activities.MemoryGraphParent" />
+        <activity android:name=".activities.MemoryGraphParent"
+            android:launchMode="singleInstance"
+            />
         <activity
             android:name=".communication.bluetooth.BluetoothTestActivity"
             android:parentActivityName=".main.NeuroLab" />
diff --git a/app/src/main/java/io/neurolab/fragments/MemoryGraphFragment.java b/app/src/main/java/io/neurolab/fragments/MemoryGraphFragment.java
index e5f2ebd4..62e53c86 100644
--- a/app/src/main/java/io/neurolab/fragments/MemoryGraphFragment.java
+++ b/app/src/main/java/io/neurolab/fragments/MemoryGraphFragment.java
@@ -145,6 +145,7 @@ private void buildInstructionDialog() {
                 .setPositiveButton(R.string.focus_test_msg, (dialog, which) -> {
                     Intent intent = new Intent(getContext(), DataLoggerActivity.class);
                     intent.putExtra(ProgramModeActivity.PROGRAM_FLAG_KEY, MemoryGraphParent.MEMORY_GRAPH_FLAG);
+                    intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK|Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
                     startActivity(intent);
                 })
                 .create();
diff --git a/app/src/main/res/layout/activity_share_data.xml b/app/src/main/res/layout/activity_share_data.xml
index 52f589b1..ade31878 100644
--- a/app/src/main/res/layout/activity_share_data.xml
+++ b/app/src/main/res/layout/activity_share_data.xml
@@ -1,4 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
+
+
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"