I have just started to deploy to the cloud. My first attempt has been

Objetos = {Graph[{1 <-> 2, 2 <-> 3, 3 <-> 1}], MatrixForm[( {
      {1, 2},
      {3, 4}
     } )], "Hello World"};

CloudDeploy[Manipulate[Objetos[[obj]], {obj, {1, 2, 3}}]] It worked nicely!. Then I wanted to use mathematica symbols, like this

Objetos = {Graph[{1 <-> 2, 2 <-> 3, 3 <-> 1}], MatrixForm[( {
      {1, 2},
      {3, \[Omega]}
     } )], "Hello World"};
CloudDeploy[Manipulate[Objetos[[obj]],
  {obj, {1, 2, 3}}]]

Everything worked again except that the symbol omega would not display. Is there a restriction to work with symbols in the cloud?? Thanks for any help you can give me to understand this. Jesus