Hello ! 
I installed the Invoicing plugin the works well but I struggle to display the seller information in the PDF:
I set this information on the Channel while editing the channel.
(I have only 1 channel and the order belongs to this channel)
In the invoicing-plugin/src/Ui/action/DownloadInvoiceAction.php I dumped the invoice object and the billing data is empty:
$invoice = $this->invoiceRepository->find($id);
dump($invoice); die();
#billingData: Proxies_CG_\Sylius\InvoicingPlugin\Entity\BillingData {#6793 â–¼
+isInitialized: false
#id: 1
…2
}
I also flushed the cache with: bin/console cache:clear
but nothing appears…
Thank you for your lights 