So apparently one's first map is not without its pitfalls. Recently when trying to run the map in order to test it, the compiler freezes on the PortalFlow: line. Trying to close either the compiler or Hammer results in a "Hammer is not responding" message from Windows. I suspect that adding hint brushes can maybe help, but I have failed to really grasp what they're used for and how to properly place them, despite looking at several guides to them. Any help would be appreciated. (On a completely unrelated note, I hope I don't have many more issues after this. I'd feel bad making a new topic here every other week.) Image of the compiler for reference: Here.