Thanks for reporting.0 barisusakli committed to NodeBB/NodeBB fix composer redirect on home page
Composer window positioning
Here's a bug I've noticed a little bit ago, not sure if this is is persona related or Nbb, but if you make the window smaller (heightwise), the composer will begin to get cut off and you can't see what you're typing.
Yeah this is intentional, I believe, as the composer is best used at a certain height and up. Any shorter, and the composer will slide downwards to obscure itself.