I work with a dual screen setup with the Bolt Flow Graph editor, along with Graph Inspector and Variables panels in a separate window.
Whenever I click and drag the top of this window, it also makes a selection inside the flow graph and starts dragging the selection box infinitely in the upward direction. On a related note, it would help potential issues like this a lot to make the 'screen edge' have a finite size, i.e. only three screens past your box locations? It drags into infinity and I have to reset it using "Overview" every time.
Customer support service by UserEcho