diff --git a/LifxAppEclipse/.classpath b/LifxAppEclipse/.classpath
index 6818a28..bbb60df 100644
--- a/LifxAppEclipse/.classpath
+++ b/LifxAppEclipse/.classpath
@@ -15,7 +15,7 @@
 	<classpathentry kind="lib" path="libs-local/annotation-1.1.0.jar"/>
 	<classpathentry kind="lib" path="libs-local/core-1.1.0-rc03.jar"/>
 	<classpathentry kind="lib" path="libs-local/appcompat-1.3.1.jar"/>
-	<classpathentry kind="lib" path="libs-local/constraintlayout-2.1.0.jar"/>
+	<classpathentry kind="lib" path="libs-local/constraintlayout-2.1.1.jar"/>
 	<classpathentry kind="lib" path="libs-local/lifecycle-extensions-2.2.0.jar"/>
 	<classpathentry kind="lib" path="libs-local/material-1.4.0.jar"/>
 	<classpathentry kind="lib" path="libs-local/savedstate-1.0.0.jar"/>
diff --git a/LifxTools/app/build.gradle b/LifxTools/app/build.gradle
index af7f439..89eaeff 100644
--- a/LifxTools/app/build.gradle
+++ b/LifxTools/app/build.gradle
@@ -30,7 +30,7 @@ dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation 'androidx.appcompat:appcompat:1.3.1'
     implementation 'com.google.android.material:material:1.4.0'
-    implementation 'androidx.constraintlayout:constraintlayout:2.1.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.1.1'
     implementation 'androidx.navigation:navigation-fragment:2.3.5'
     implementation 'androidx.navigation:navigation-ui:2.3.5'
     implementation 'androidx.lifecycle:lifecycle-extensions:2.2.0'
diff --git a/LifxTools/app/src/main/java/de/jeisfeld/lifx/app/view/PickedImageDialogFragment.java b/LifxTools/app/src/main/java/de/jeisfeld/lifx/app/view/PickedImageDialogFragment.java
index 601a1d2..84fc9a1 100644
--- a/LifxTools/app/src/main/java/de/jeisfeld/lifx/app/view/PickedImageDialogFragment.java
+++ b/LifxTools/app/src/main/java/de/jeisfeld/lifx/app/view/PickedImageDialogFragment.java
@@ -46,13 +46,17 @@ public class PickedImageDialogFragment extends DialogFragment {
 	 * The overhead size taken when prescaling the image before setting contrast and saturation.
 	 */
 	private static final int PRESCALE_OVERHEAD_FACTOR = 4;
+	/**
+	 * Flag indicating if ok has been pressed.
+	 */
+	private boolean isOkPressed = false;
 
 	/**
 	 * Display a dialog for handling a picked image for a tile chain.
 	 *
 	 * @param activity the current activity
-	 * @param model the light model.
-	 * @param bitmap the picked image.
+	 * @param model    the light model.
+	 * @param bitmap   the picked image.
 	 * @param listener The listener waiting for the response
 	 */
 	public static void displayPickedImageDialog(final FragmentActivity activity,
@@ -204,13 +208,14 @@ public final Dialog onCreateDialog(final Bundle savedInstanceState) {
 		builder.setTitle(R.string.title_dialog_image)
 				.setView(view) //
 				.setNegativeButton(R.string.button_cancel, (dialog, id) -> {
-					// Send the positive button event back to the host activity
+					// Send the negative button event back to the host activity
 					if (mListener != null && mListener.getValue() != null) {
 						mListener.getValue().onDialogNegativeClick(PickedImageDialogFragment.this);
 					}
 				}) //
 				.setPositiveButton(R.string.button_ok, (dialog, id) -> {
-					// Send the negative button event back to the host activity
+					// Send the positive button event back to the host activity
+					isOkPressed = true;
 					if (mListener != null && mListener.getValue() != null) {
 						mListener.getValue().onDialogPositiveClick(PickedImageDialogFragment.this, mCurrentColors);
 					}
@@ -229,8 +234,7 @@ public final void onCancel(@Nonnull final DialogInterface dialogInterface) {
 	@Override
 	public final void onPause() {
 		super.onPause();
-		// this dialog does not support onPause as it has serialization issues in colors.
-		if (mListener != null && mListener.getValue() != null) {
+		if (mListener != null && mListener.getValue() != null && !isOkPressed) {
 			mListener.getValue().onDialogNegativeClick(PickedImageDialogFragment.this);
 		}
 		dismiss();