Using KVM in target endpoint doesn't work.

[benyuen-1]

Hey,

I got an API proxy with two target endpoints both with a shared variable like this. https://test-{env}.com and https://test1-{env}.com. It seems like for https://test-{env}.com it works but for my https://test1-{env}.com it doesn't work at all. I'm getting the error:

{
    "fault": {
        "faultstring": "The Service is temporarily unavailable",
        "detail": {
            "errorcode": "messaging.adaptors.http.flow.ServiceUnavailable"
        }
    }
}

My KeyValueMapOperation looks like this:

    <Get assignTo="env" index="1">
        <Key>
            <Parameter>environment</Parameter>
        </Key>
    </Get>

What am I doing wrong?