I am having the same problem with the latest update. Didnt happen with the initial UI update but with the one that added chat width etc it changed. Before I would have to open the window and scroll it up, but now I cant even scroll it up.
I have to bump this again. I’m having the same issues with both Chrome and Opera (since this Summer’s UI Update).
For anyone else still experiencing this problem, the browser Bravedoes not experience this issue. Thus far, it is the only one I’ve found that does not cut off the bottom line and prevent scrolling inside the chat window.