Guys, this notifications bug should be fixed on latest persona (though I'm not sure if you need latest core for it)
Tested using core master and Persona master and this works now for me 👍 🙂
I have a strange behaviour on a topic created by one of my users. He started the topic, then added replies (it's a topic where he presents his work by making a kind of summary in his first post). But, it turns out that the posts are not in the right order. The ids don't follow each other ... post 1742, followed by 1744, followed by 1731 ... and indeed, the post timestamp confirms the wrong posting order.
Strange, isn't it?
Maybe the "Sort by votes" was activated in topics?