(NodeJS) WordPress API, updating Events Calendar event (tribe event) removes featured image from post

Question

I'm using the Wordpress API to update tribe events. The updates are successfully sent (and the change is made) but as a side-effect, any time I do it, the featured image is removed from the post...

wpapi package setup: Because The Events Calendar has it's own routes that aren't built-in by default in the wpapi package, I use the wp.registerRoute function to set that up. I don't think there's a problem with the way I set that up because otherwise it works.

var WPAPI = require( 'wpapi' );
var wp = new WPAPI({
  endpoint: 'https://www.example.com/wp-json',
  username: 'username',
  password: 'mypassword'
});
wp.tribeevent = wp.registerRoute('tribe/events/v1', '/events/(?P<id>)');

example update:

function showEvent (post_id) {
  let data = { "hide_from_listings" : false }
  wp.tribeevent().id(post_id).update(data)
}

Haven't been able to find anyone with this issue online, so I'm posting here after exhausting myself trying to get it to work without removing the image... Am I doing this wrong? Is this just a bug? Any suggested workarounds?

I've also tried adding the existing image info into the update data sent, but I get this response when doing so:

{
    "error": {
        "code": "rest_invalid_param",
        "message": "Invalid parameter(s): image",
        "data": {
            "status": 400,
            "params": {
                "image": "Invalid parameter."
            },
            "details": []
        }
    }
}

Otherwise, when making an update such as { "hide_from_listings" : false }, when the json response comes back, the value of the image key just comes back as false: { "image" : false }

Would greatly appreciate any kind of input on this issue...