I think that
Qt Code: 
  1. QVector<Okrag>
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is probably not recognized as a data type that can be passed via signals/slots across threads. I think you need to use qRegisterMetaType.

You need to do a typedef

Qt Code: 
  1. typedef QVector<Okrag> MyClass;
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and then

Qt Code: 
  1. qRegisterMetaType<MyClass>("MyClass");
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