Select tool locked as Rectangle Mask (After Effects)

Working in a project and the select tool (v) is stuck as a rectangle shape tool. No matter which layer I click on, it just starts making a rectangle. CTRL Z doesn't even undo it. It's also doing it in every comp in the project, even one's without any shapes or masks. I can't click anything and am only able to move by using the arrow keys or dragging position. Please help ^->