Shopify Marketplace Connect

I've only been using this app for a month and it has been great for listing stuff on ebay - it even resulted in some sales since my ebay store gets more traffic at the moment, BUT...

it seems to have imploded - inability to correctly edit ebay templates (hello, blank screen that references a liquid file that doesn't exist in my theme), Syntax/JSON errors, listings that don't show up in the marketplace connect listing management, etc... pretty frustrating since some of my prices on shopify are dynamic.