Hello, Beshoy,
For the ComboBox it does not make a difference where the data is coming from. It expects an array of data.
I can assume that "this.state.domains" is not in the expected format.
Could you please console.log(this.state.domains) inside render and share the result with us? This will allow me to inspect if the issue is connected to the data format.
Regards,
Stefan
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