Amazon Combined Orders Marketplace Notifications Broken

I don't know if anyone else has noticed this. If you ship a combined Amazon order, Shipstation no longer is able to notify the marketplace. I'm told by Customer Service that this feature is no longer supported. This worked for years, and just stopped working yesterday. No communication from SS about this no longer being offered, even though it still works for other marketplaces (eBay, Etsy, Walmart, etc.). However, the SS batch process that runs to let you know which orders they suggest you combine is still running and includes Amazon orders. Even worse, under the Shipping tab, these orders are being marked as if the marketplace has been SUCCESSFULLY notified when in fact it hasn't. The only work-around is to go into Amazon Seller Central and, after you figure out which orders are impacted (not as easy as you'd think), you have to manually update each one. This is just one more thing in this system that has broken over time and will probably not be fixed. I have cases that are over a year old that I guess are now in their developers' black hole. I don't know if it's even worth adding another case to this pile. I'm beyond pissed.