title: Malformed calls from JS: field sizes are different
body: <p>I get an error when I run the ios simulator. As soon as I login, the app crashes.</p>
  
  <p>I was on the branch master, everything was working fine. I created a new branch 'android' and ran the android simulator, fixing a few things related to android. Then I wanted to make sure things still looked good in iPhone, so I ran to iPhone simulator and that's when I got the bug. The screen does not crash immediately. It crashes as soon as I login. The android simulator runs perfectly fine though. I figured I would 'git checkout master' branch to pinpoint what exactly caused that error, but the error persisted on the master branch. That doesn't make much sense to me.</p>
  
  <p>This is my stacktrace:</p>
  
  <pre><code>Malformed calls from JS: field sizes are different.
  
  [[74,24],[19,1],[[64,2000,1552169087432,false]],415]
  
  RCTFatal
  -[RCTCxxBridge handleError:]
  __34-[RCTCxxBridge _initializeBridge:]_block_invoke
  facebook::react::RCTMessageThread::tryFunc(std::__1::function&lt;void ()&gt; const&amp;)
  facebook::react::RCTMessageThread::runOnQueue(std::__1::function&lt;void ()&gt;&amp;&amp;)::$_1::operator()() const
  void std::__1::__invoke_void_return_wrapper::__call&lt;facebook::react::RCTMessageThread::runOnQueue(std::__1::function&lt;void ()&gt;&amp;&amp;)::$_1&amp;&gt;(facebook::react::RCTMessageThread::runOnQueue(std::__1::function&lt;void ()&gt;&amp;&amp;)::$_1&amp;&amp;&amp;)
  std::__1::__function::__func&lt;facebook::react::RCTMessageThread::runOnQueue(std::__1::function&lt;void ()&gt;&amp;&amp;)::$_1, std::__1::allocator&lt;facebook::react::RCTMessageThread::runOnQueue(std::__1::function&lt;void ()&gt;&amp;&amp;)::$_1&gt;, void ()&gt;::operator()()
  std::__1::function&lt;void ()&gt;::operator()() const
  invocation function for block in facebook::react::RCTMessageThread::runAsync(std::__1::function&lt;void ()&gt;)
  CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK
  __CFRunLoopDoBlocks
  __CFRunLoopRun
  CFRunLoopRunSpecific
  +[RCTCxxBridge runRunLoop]
  NSThread__start
  _pthread_body
  _pthread_body
  thread_start
  </code></pre>
  
  <p>I have no idea how to debug this issue. It came out of nowhere and reverting to previous commits isn't helping. The error details don't give me much to work with. Please help!</p>
  
  <p>Here are my package.json dependencies:</p>
  
  <pre><code>"@babel/core": "^7.3.3",
  "antd-mobile-rn": "^2.2.1",
  "axios": "^0.18.0",
  "babel-eslint": "^8.2.2",
  "bugsnag-react-native": "^2.14.0",
  "bugsnag-sourcemaps": "^1.1.0",
  "moment": "^2.24.0",
  "node": "^10.15.1",
  "npm": "^6.7.0",
  "prop-types": "^15.6.1",
  "react": "^16.7.0",
  "react-native": "^0.58.4",
  "react-native-alert-async": "^1.0.3",
  "react-native-aws3": "0.0.8",
  "react-native-cached-image": "^1.4.3",
  "react-native-country-picker-modal": "^0.7.1",
  "react-native-elements": "^0.19.0",
  "react-native-modalbox": "^1.7.1",
  "react-native-photo-upload": "^1.3.0",
  "react-native-push-notification": "^3.1.2",
  "react-native-router-flux": "^4.0.0-beta.28",
  "react-native-step-indicator": "0.0.9",
  "react-native-swiper": "^1.5.14",
  "react-native-vector-icons": "^4.6.0",
  "react-navigation": "^2.18.3",
  "rn-fetch-blob": "^0.10.15",
  "socks": "^2.3.0",
  "tinycolor2": "^1.4.1"
  </code></pre>
  
  <p>Let me know what additional information I can provide.</p>