UpdateRecord won't update nested fields

[#1]

I have this XML file:

<request>
    <requestType>BULKRETRIEVE</requestType>
    <requestDomainType>ROI</requestDomainType>
    <systemName>SYSTEMTEST</systemName>
    <location>USA</location>    
    <userInformation>
        <userId>1313</userId>
        <firstName>Some</firstName> <!-- required -->
        <lastName>Guy</lastName> <!-- required -->
        <email>email@address.com</email> <!-- required if phone not included -->
        <phone></phone> <!-- required if email not included -->
    </userInformation>  
    <requestObject>
        <startDate>2019-01-01T00:00:00.000-05:00</startDate>
        <endDate>2019-01-31T00:00:00.000-05:00</endDate>
        <type>ROI</type>
    </requestObject>
</request>

Using this schema

{
    "namespace": "com.organization.somethingspecific",
    "name": "request",
    "type": "record",
    "fields": [
      {"name": "requestType", "type": ["string","null"], "default": null},
      {"name": "requestDomainType", "type": ["string","null"], "default": null},
      {"name": "systemName", "type": ["string","null"], "default": null},
      {"name": "location", "type": ["string","null"], "default": null},
      {"name": "userInformation", "type": ["null", {
        "name": "userInformation", "type": "array", "items": {
          "name": "userInformation", "type": "record", "fields": [
            {"name": "userId", "type": ["string","null"], "default": null},
            {"name": "firstName", "type": ["string","null"], "default": null},
            {"name": "lastName", "type": ["string","null"], "default": null},
            {"name": "email", "type": ["string","null"], "default": null},
            {"name": "phone", "type": ["string","null"], "default": null}
          ]
        }
      }], "default": null},
      {"name": "requestObject", "type": ["null",{
        "name": "requestObject", "type": "array", "items": {
          "name": "requestObject", "type": "record", "fields": [
            {"name": "startDate", "type": ["string","null"], "default": null},
            {"name": "endDate", "type": ["string","null"], "default": null},
            {"name": "type", "type": ["string","null"], "default": null}
          ]
        }
      }], "default": null}
    ]
}

I am confident that the schema is correct because I am able to convert from XML to JSON no problem.

However UpdateRecord is not able to alter nested fields no matter how I reference them. I have the following UpdateRecord processor:

At the very least I would expect //startDate to work since that is SUPPOSED to ignore hierarchy, but I can only update top level fields such as /requestType which is the only one that actually updates of the 4 in my configuration.

I am following the documentation exactly, what else could be wrong? Any help appreciated.

[#2]

Was able to solve this by removing my usage of arrays from my schema

[#3]

Hi @Andrew Riffle it looks like I'm facing the same problem.

I dont't understand your remark concering your solution.

You deleted the "array"-line from your schema and then it worked OR you don't work with an array anymore?

Could you please make this clear? Thanks!

[#4]

Hello guys,
I have the same problem and I would also like you to explain a bit how you made this work. I have followed the help guidelines but can't make it work.

@ariffle 

Thanks