The brick is both anchored, collide, and archivable
10.10.3 Yosemite OS
Most recently updated Studio as of this post
I did try reinstalling Studio and closing it multiple times.
It appears that you’re using the System Menu version of Studio. This is an issue that can be resolved by switching to Ribbon Bar.
You have no idea how much rage you probably will cause with that statement. System Menu still has a heavy following.
It is a System Menu + Mac 10.10 specific issue, so technically, changing OS to either Windows or an earlier Mac version would work as well.
Older versions of mac have issues updating ROBLOX, forcing me to use the most updated 10.10.3 Yosemite.