Create DataSet with Cyrillic column name (API)

Hello everyone, i have a problem with API when i try to create a DataSet which contains a Cyrillic. After created DataSet i got a table with column name "????" instead of Cyrillic. 

    {
     "name": "SalesMarketing",
       "tables": 
       [
         {
           "name": "Product", 
           "columns": 
             [
               { "name": "ProductID", "dataType": "Int64"},
               { "name": "Name", "dataType": "string"},
               { "name": "Category", "dataType": "string"},
               { "name": "IsCompete", "dataType": "bool"},{ "name": "Колонка", "dataType": "DateTime"}
             ]
          }
        ]
    }