Laravel Excel queued export isn't creating jobs

I am trying to get queued exports to work with the Laravel Excel package, but can't figure out what I'm missing. I followed the docs on how to queue exports, but when I test it the export completes after the first batch is exported, so after the first 1000 rows. I setup my application to use the database driver in .env and generated/ran the migrations.

I'm using Laravel 5.8, Laravel Excel 3.1, PHP 7.2, Postgresql 10. Here's a basic version of what I have so far:

Controller

public function export(Request $request){
    $name = 'test.csv';
    (new ExcelExport($client, $year))->queue('public/exports/' . $name)->chain([
        new NotifyUserOfExport($request->user(), $name),
    ]);
    return back()->with('message', 'This export will take some time. You will receive an email when it is ready to download.');
}

Export Class

class ExcelExport implements FromQuery, WithHeadings, WithMapping, WithStrictNullComparison
{
    use Exportable;
    public function __construct($client, $year)
    {
        $this->year = $year;
        $this->client = $client;
    }
    public function query()
    {
        $query = $this->getQuery();
        return $query;
    }
    public function headings(): array
    {
        //...
    }
    public function map($row): array
    {
        //....
    }
    private function getQuery()
    {
        return \DB::table('mytable')
                  ->where('year', $this->year)
                  ->where('client', $this->client)
                  ->orderBy('created_at')
                  ->groupBy('column');
    }

My queue.php

return [
    'default' => env('QUEUE_CONNECTION', 'sync'),
    'connections' => [
        'sync' => [
            'driver' => 'sync',
        ],
        'database' => [
            'driver' => 'database',
            'table' => 'jobs', // also tried 'myschema.jobs'
            'queue' => 'default',
            'retry_after' => 90,
        ],
        //.....
    ],

My .env

QUEUE_CONNECTION=database

I don't think there's any other code that's relevant. I get the notification that's supposed to send after all the jobs are finished, but like I mentioned earlier, it's sent after the first batch is completed. There are no jobs inserted into the jobs table in the database either, so there's the problem. I just can't figure out what I'm missing.

I should mention that I don't want to use the Implicit Export queueing, since this same export is used in another part of the application that only requires a few rows to be exported, so I don't need to queue it.

Any help would be appreciated.