[Brian]

Just to clarify, the "Project filter" and the "Sidebar Filter" are the same thing; the one on the left hand side of the screen. The filter on the right side applies to actions, not the project.

If you're getting actions in an On Hold project or Single Action list to appear when the Available actions filter is selected, that's a bug.

I've got some test projects set up that way, and the actions are hidden. Send info - screenshots, maybe - to the support ninjas on what you've got and we can write that up.