The topic pretty much says it all. My listings were showing up just fine for as long as I can remember. Now, suddenly, all of them have disappeared, even though they still say “active” on my inventory list. There is no link on the support website to open up a case.
What do you mean by disappeared? You can’t find them or are you getting a dog page?
Are you including any 3rd party brand names or trademarked terms in the product titles, bullet points or descriptions?
If yes, then this is the most likely cause of the disappearance.
Amazon has very strict rules regarding compatibility.