diff --git a/app/build.gradle b/app/build.gradle
index bbb900d2a2..043cd59751 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -8,8 +8,8 @@ android {
         applicationId "com.m2049r.xmrwallet"
         minSdkVersion 21
         targetSdkVersion 25
-        versionCode 41
-        versionName "1.2.1"
+        versionCode 42
+        versionName "1.2.2"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
         externalNativeBuild {
             cmake {
diff --git a/app/src/main/java/com/m2049r/xmrwallet/ReceiveFragment.java b/app/src/main/java/com/m2049r/xmrwallet/ReceiveFragment.java
index 0259fe8e90..cc9972578b 100644
--- a/app/src/main/java/com/m2049r/xmrwallet/ReceiveFragment.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/ReceiveFragment.java
@@ -116,8 +116,10 @@ public void onNewAmount(String xmr) {
         evAmount.setOnFailedExchangeListener(new ExchangeView.OnFailedExchangeListener() {
             @Override
             public void onFailedExchange() {
-                clearQR();
-                Toast.makeText(getActivity(), getString(R.string.message_exchange_failed), Toast.LENGTH_LONG).show();
+                if (isAdded()) {
+                    clearQR();
+                    Toast.makeText(getActivity(), getString(R.string.message_exchange_failed), Toast.LENGTH_LONG).show();
+                }
             }
         });
 
diff --git a/app/src/main/java/com/m2049r/xmrwallet/SendFragment.java b/app/src/main/java/com/m2049r/xmrwallet/SendFragment.java
index f6c435a588..e9b58ff7d9 100644
--- a/app/src/main/java/com/m2049r/xmrwallet/SendFragment.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/SendFragment.java
@@ -24,7 +24,9 @@
 import android.support.design.widget.TextInputLayout;
 import android.support.v4.app.Fragment;
 import android.support.v7.app.AlertDialog;
+import android.text.Editable;
 import android.text.InputType;
+import android.text.TextWatcher;
 import android.util.Log;
 import android.view.KeyEvent;
 import android.view.LayoutInflater;
@@ -137,6 +139,21 @@ public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
             }
         });
 
+        etAddress.getEditText().addTextChangedListener(new TextWatcher() {
+            @Override
+            public void afterTextChanged(Editable editable) {
+                etAddress.setError(null);
+            }
+
+            @Override
+            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+            }
+
+            @Override
+            public void onTextChanged(CharSequence s, int start, int before, int count) {
+            }
+        });
+
         etPaymentId.getEditText().setOnEditorActionListener(new TextView.OnEditorActionListener() {
             public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
                 if ((event != null && (event.getKeyCode() == KeyEvent.KEYCODE_ENTER)) || (actionId == EditorInfo.IME_ACTION_DONE)) {
@@ -150,6 +167,21 @@ public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
             }
         });
 
+        etPaymentId.getEditText().addTextChangedListener(new TextWatcher() {
+            @Override
+            public void afterTextChanged(Editable editable) {
+                etPaymentId.setError(null);
+            }
+
+            @Override
+            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+            }
+
+            @Override
+            public void onTextChanged(CharSequence s, int start, int before, int count) {
+            }
+        });
+
         bPrepareSend.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
@@ -234,7 +266,8 @@ public void onItemSelected(final AdapterView<?> parentView, View selectedItemVie
                 parentView.post(new Runnable() {
                     @Override
                     public void run() {
-                        ((TextView) parentView.getChildAt(0)).setTextColor(getResources().getColor(R.color.moneroGray));
+                        if (isAdded())
+                            ((TextView) parentView.getChildAt(0)).setTextColor(getResources().getColor(R.color.moneroGray));
                     }
                 });
             }
@@ -250,7 +283,8 @@ public void onItemSelected(final AdapterView<?> parentView, View selectedItemVie
                 parentView.post(new Runnable() {
                     @Override
                     public void run() {
-                        ((TextView) parentView.getChildAt(0)).setTextColor(getResources().getColor(R.color.moneroGray));
+                        if (isAdded())
+                            ((TextView) parentView.getChildAt(0)).setTextColor(getResources().getColor(R.color.moneroGray));
                     }
                 });
             }