Payment method and migration (from Magento 1.9)

I have done a migration from Magento 1.9.
All orders are migrated, but there are some issue with my custom created payment method. Before starting the migration, I created two new payment methods:

  • Swish
  • Payson

The „Payson“ method is to assign payments from Magento done using a third party module which are not available in Shopware. But, when I open such a order (in Shopware) the „Delivery status“ and „Payment status“ just spinning. BTW, the displayed status for the order is correct.

Is there any way to fix this?

/ Magnus