Issue Updating Account Information Custom Fields

I have added the custom fields I request on the registration form to the account page so users can update the details when they go to their account. However, I am having an issue where it says everything was successful yet nothing changed. I am adding the extra profile fields via a hook: https://gist.github.com/champsupertramp/c1f6d83406e9e0425e9e98aaa36fed7d

If I take out && in_array( $k, $arr_fields ) in the below code from um-actions-account.php, then my custom fields are updated properly…

$changes = array();
foreach( $_POST as $k => $v ) {
    if ( !strstr( $k, 'password' ) && !strstr( $k, 'um_account' ) && in_array(
        $k, $arr_fields ) ) {
        $changes[ $k ] = $v;
    }
}

I also noticed that the $changes variable in the um_account_pre_update_profile hook do not show anything changed unless I remove the above check. I have tried re-creating the custom fields after several UM plugin updates. I’ve deactivated/reactivated the plugin, I’ve cleared the cache, and have tried creating several users. I thought I had got this working by adding the following lines. However, it seems the issue has come up again.

Any ideas? I don’t want to alter the source code because it doesn’t persist through updates, or otherwise I wouldn’t mind keeping it this way. Thanks!