If i run another set of non-android tests using selenium grid also everything works as well

Issues/Bugs
1

I have set up jenkins, selenium grid, android sdk and appium.

I want to run my tests on a real device (Samsung). The device is connected via usb to my PC and developer mode is enabled.

adb devices
returns phone’s id (or whatever that string is supposed to mean)

If i run my tests directly through appium everything works.

capabilities = new DesiredCapabilities();
capabilities.setCapability("device","Android");
capabilities.setBrowserName("chrome");
capabilities.setCapability("deviceName","Android");
capabilities.setCapability("platformName","Android");
super.webDriverUrl = new URL("http://127.0.0.1:4723/wd/hub");

If i run another set of non-android tests using selenium grid also everything works as well.

FirefoxProfile profile = new FirefoxProfile();
DesiredCapabilities capabilities = DesiredCapabilities.firefox();
capabilities.setCapability(FirefoxDriver.PROFILE, profile);
driver = new RemoteWebDriver(jenkinsurl+"/wd/hub",capabilities);
The problem is if i try to run android tests through selenium grid my setup wont work. Appium is starting with an argument --nodeconfig /path/to/json

In the json file are defined following capatibilities:

 "capabilities":
  [
    {
      "browserName":"Android",
      "version":"4.2",
      "platformName":"Android",
      "deviceName":"4203abf3dab84100"
    }
  ],

appium output:

info: [debug] Appium successfully registered with the grid on 127.0.0.1:4444

The node is also diplayed in jenkins/selenium/

Following code is an example how do i create an instance of remotewebdriver

capabilities = new DesiredCapabilities();
capabilities.setBrowserName("Android");
capabilities.setCapability("Vesrion","4.2");
capabilities.setCapability("deviceName","4203abf3dab84100");
capabilities.setCapability("platformName","Android");
driver = new RemoteWebDriver(jenkinsurl+"/wd/hub",capabilities);

output:

Running somepackage.TestAndroid
Configuring TestNG with: TestNGMapConfigurator
And there it freezes, no exception in ide console,nor in appium process log. Samsung phone wont open chrome browser.

Thanks,
Gracy Layla