Can’t upload product image on eBay Error using M2ePro on Magento

After a switch to a https only setup on a Magento 1.8.0 installation using M2ePro 6.1.6 the following error ocurred when trying to list items using images: Can’t upload product image on eBay A quick Google search revealed the following official statement from the company behind M2ePro: This problem does...