diff --git a/CHANGELOG.md b/CHANGELOG.md
index 043a560a8..f6d821b36 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [9.5.2]
+### Fixed
+- [#11071](https://github.com/MetaMask/metamask-extension/pull/11071): Fixing address entry error when sending a transaction on a custom network
+
 ## [9.5.1]
 ### Fixed
 - [#11048](https://github.com/MetaMask/metamask-extension/pull/11048): Fixed icon on approval screen
@@ -2226,7 +2230,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Uncategorized
 - Added the ability to restore accounts from seed words.
 
-[Unreleased]: https://github.com/MetaMask/metamask-extension/compare/v9.5.1...HEAD
+[Unreleased]: https://github.com/MetaMask/metamask-extension/compare/v9.5.2...HEAD
+[9.5.2]: https://github.com/MetaMask/metamask-extension/compare/v9.5.1...v9.5.2
 [9.5.1]: https://github.com/MetaMask/metamask-extension/compare/v9.5.0...v9.5.1
 [9.5.0]: https://github.com/MetaMask/metamask-extension/compare/v9.4.0...v9.5.0
 [9.4.0]: https://github.com/MetaMask/metamask-extension/compare/v9.3.0...v9.4.0
diff --git a/app/manifest/_base.json b/app/manifest/_base.json
index 40c975a05..07664ccd7 100644
--- a/app/manifest/_base.json
+++ b/app/manifest/_base.json
@@ -71,6 +71,6 @@
     "notifications"
   ],
   "short_name": "__MSG_appName__",
-  "version": "9.5.1",
+  "version": "9.5.2",
   "web_accessible_resources": ["inpage.js", "phishing.html"]
 }
diff --git a/app/scripts/lib/createMetaRPCHandler.js b/app/scripts/lib/createMetaRPCHandler.js
index 24ac0ff6a..9b25c6ce7 100644
--- a/app/scripts/lib/createMetaRPCHandler.js
+++ b/app/scripts/lib/createMetaRPCHandler.js
@@ -2,6 +2,9 @@ import { ethErrors, serializeError } from 'eth-rpc-errors';
 
 const createMetaRPCHandler = (api, outStream) => {
   return (data) => {
+    if (outStream._writableState.ended) {
+      return;
+    }
     if (!api[data.method]) {
       outStream.write({
         jsonrpc: '2.0',
@@ -13,6 +16,9 @@ const createMetaRPCHandler = (api, outStream) => {
       return;
     }
     api[data.method](...data.params, (err, result) => {
+      if (outStream._writableState.ended) {
+        return;
+      }
       if (err) {
         outStream.write({
           jsonrpc: '2.0',
diff --git a/app/scripts/lib/createMetaRPCHandler.test.js b/app/scripts/lib/createMetaRPCHandler.test.js
index e37985105..c3f644ec8 100644
--- a/app/scripts/lib/createMetaRPCHandler.test.js
+++ b/app/scripts/lib/createMetaRPCHandler.test.js
@@ -58,4 +58,40 @@ describe('createMetaRPCHandler', function () {
       done();
     });
   });
+  it('can not throw an error for writing an error after end', function (done) {
+    const api = {
+      foo: (param1, cb) => {
+        assert.strictEqual(param1, 'bar');
+        cb(new Error('foo-error'));
+      },
+    };
+    const streamTest = createThoughStream();
+    const handler = createMetaRPCHandler(api, streamTest);
+    streamTest.end();
+    handler({
+      id: 1,
+      method: 'foo',
+      params: ['bar'],
+    });
+    done();
+  });
+  it('can not throw an error for write after end', function (done) {
+    const api = {
+      foo: (param1, cb) => {
+        assert.strictEqual(param1, 'bar');
+        cb(undefined, {
+          foo: 'bar',
+        });
+      },
+    };
+    const streamTest = createThoughStream();
+    const handler = createMetaRPCHandler(api, streamTest);
+    streamTest.end();
+    handler({
+      id: 1,
+      method: 'foo',
+      params: ['bar'],
+    });
+    done();
+  });
 });
diff --git a/app/scripts/metamask-controller.js b/app/scripts/metamask-controller.js
index 2ae3c6ef1..00b3115c8 100644
--- a/app/scripts/metamask-controller.js
+++ b/app/scripts/metamask-controller.js
@@ -2024,6 +2024,9 @@ export default class MetamaskController extends EventEmitter {
     // set up postStream transport
     outStream.on('data', createMetaRPCHandler(api, outStream));
     const handleUpdate = (update) => {
+      if (outStream._writableState.ended) {
+        return;
+      }
       // send notification to client-side
       outStream.write({
         jsonrpc: '2.0',
diff --git a/ui/app/components/ui/identicon/identicon.component.js b/ui/app/components/ui/identicon/identicon.component.js
index bad826dc9..d52717d05 100644
--- a/ui/app/components/ui/identicon/identicon.component.js
+++ b/ui/app/components/ui/identicon/identicon.component.js
@@ -3,7 +3,7 @@ import PropTypes from 'prop-types';
 import classnames from 'classnames';
 import contractMap from '@metamask/contract-metadata';
 
-import { checksumAddress } from '../../../helpers/utils/util';
+import { checksumAddress, isHex } from '../../../helpers/utils/util';
 import Jazzicon from '../jazzicon';
 import BlockieIdenticon from './blockieIdenticon';
 
@@ -85,10 +85,12 @@ export default class Identicon extends PureComponent {
     }
 
     if (address) {
-      const checksummedAddress = checksumAddress(address);
+      if (isHex(address)) {
+        const checksummedAddress = checksumAddress(address);
 
-      if (contractMap[checksummedAddress]?.logo) {
-        return this.renderJazzicon();
+        if (contractMap[checksummedAddress]?.logo) {
+          return this.renderJazzicon();
+        }
       }
 
       return (
diff --git a/ui/lib/icon-factory.js b/ui/lib/icon-factory.js
index c72f5dfd9..7e8a27aca 100644
--- a/ui/lib/icon-factory.js
+++ b/ui/lib/icon-factory.js
@@ -1,5 +1,9 @@
 import contractMap from '@metamask/contract-metadata';
-import { isValidAddress, checksumAddress } from '../app/helpers/utils/util';
+import {
+  isValidAddress,
+  checksumAddress,
+  isHex,
+} from '../app/helpers/utils/util';
 
 let iconFactory;
 
@@ -16,7 +20,12 @@ function IconFactory(jazzicon) {
 }
 
 IconFactory.prototype.iconForAddress = function (address, diameter) {
-  const addr = checksumAddress(address);
+  let addr = address;
+
+  if (isHex(address)) {
+    addr = checksumAddress(address);
+  }
+
   if (iconExistsFor(addr)) {
     return imageElFor(addr);
   }