When I add a multi-module project, the project group summary shows the 'cancel build' icon for the first project, and 'queued build' icons for the rest.
This is incorrect, nothing is building or queued at that time. If I navigate away and come back, it correctly shows the 'build project' icon for all of them. (This is in the 5th column from the right in r574073 built today.) -- Wendy