Braces causing problems in Editor

OS X, 0.4.8b

Fixed camera:

The angle for attaching braces is a bit awkward, but it's fine until the camera gets stuck in that position. Can't rotate the vehicle, no matter what object is selected.

May or may not be related, but in this case, the Go button sometimes stops working as well.

Attaching between nodes:

Sometimes, for whatever reason, the brace turns red and doesn't let me connect to a node that should be available. Connecting to a node off somewhere in the air, deleting the brace, and trying the first connection again works.

Are braces not supposed to overlap? Seems like a bug in that check could do it.