Currently running Magento Pro 1.12.0.0 M2E Pro Version: 5.2.3.r4567
As stated above, any time the client lists products on eBay from Magento using the extension M2E Pro, the images - usually the primary image - is either fully or partially greyed.
They can fix this by going into eBay and reuploading the greyed images but it is a pain and very time consuming for them. The result resembles a jpg that has been interrupted during upload or download - part of the image will show.
There is no consistency. I've experimented with a set of 50kb images and a set of 85kb images. I received varied results. I attributed this varience to some sort of server memory cap so I raised the PHP memory limit with no success.
M2E Pro support team was unable to help and I can't find anyone else online experiencing this issue online so here's hoping! Thanks in advance.