Yes. I have like 3 different apps but I regularly use Eternity. I think you're right and a decent part if it is Eternity. Like half of the empty messages show up in other apps or the web interface. But not all of them. I don't quite think it's just deleted messages. Some others are definitely there and also don't show up in Eternity... Maybe it's a combination of factors. Honestly I didn't quite pay attention when I was using which app. I'm still trying to figure it out. But this definitely seems to be part of it.