Ugh same, but from what I've seen there was a concert in May that was canceled because she had bronchitis, so that might be the reason. But I'm not 100% sure
I mean 6 months is like a long time for Mariah’s voice- Jamaica 2015 had that leftover sweet tone from Beacon 2014, and I get the feeling that when she warms up extensively it effects her voice for like a couple weeks and then it goes back. 2015 is also kind of a transition because she isn’t used to using nasality to mix like 2016 and also lacks confidence