Minor error in the code caused different results in the list of shipping methods provided by the Eshop info and Shipping methods endpoints. While the first one provides all shipping methods, the later one skips methods with shippingCompany being undefined (null).
We will fix the Shipping methods endpoint to provide all shippings, too. This however requires field shippingCompany to be nullable, which is a possible compatibility issue. To avoid problems in your software, we will introduce this change on June 8th, 2021 – please check your software for this topic until then.