Contract API could not return multiple parameters

[owyah]

I created smartcontract and has been generated using FireFly API Interface.
This is my smartcontract code:

contract Fromzero {
    struct Track {
        address createdBy;
        string materialNumber;
    }
    Track track;
    function gettrack() public view returns (address createdBy, string memory materialNumber) {
        return (track.createdBy, track.materialNumber);
    }
}

expected output:

{
  "createdBy": "string",
  "materialNumber": "string"
}

but got:

{
	"output": null
}

I have tried using remix and its working.

Could you all help me please?

[nguyer]

Thanks for reporting this @owyah. Sorry for the delay in getting back to you. I will do some testing and see if I can reproduce this.

[wpater]

Had the same issue on the 97e0392
but this issue is already resolved (at least in my case) on the newest main - c454f8d