I'm using the very latest: Revision 94791
I've noticed that if I toggle a project from sequential to parallel or visa versa, nothing changes. OmniFocus treats every project as if they were stuck in parallel mode. The icon changes, and the inspector says that it is a sequential action. However I can still check off actions farther down the list and the styling doesn't change when I toggle parallel/sequential. Even more confusing, it makes the first action purple like it is a "next action" in a sequential project, even if the project is set to be parallel.
Summary: All projects behave like parallel projects and style the first action like a "next action" regardless of the parallel/sequential setting.
I've noticed that if I toggle a project from sequential to parallel or visa versa, nothing changes. OmniFocus treats every project as if they were stuck in parallel mode. The icon changes, and the inspector says that it is a sequential action. However I can still check off actions farther down the list and the styling doesn't change when I toggle parallel/sequential. Even more confusing, it makes the first action purple like it is a "next action" in a sequential project, even if the project is set to be parallel.
Summary: All projects behave like parallel projects and style the first action like a "next action" regardless of the parallel/sequential setting.