We receive bugs on this almost every day, so I want to clear up the
difference between a room having trees within it, and a room having a
canopy. Forest rooms in general will have trees in them, that one can
swing up into. However, some rooms also have canopies. These canopies
prevent flight into the sky level. If a room has a canopy, this does not
necessarily mean you can swing up into the tree level. It just means
that there is an overhead level of branches and whatnot that are too
high for you to reach, but thick enough to prevent flight into the sky.

So please stop filing bugs about this!

Penned by my hand on the 21st of Arios, in the year 227 MA.