Trying to align a line to match the exact height of another point — can't get the snap to work
Hey guys, I'm stuck on something that feels like it should be simple. I've got a line/curve I'm moving around with the Gumball, and what I want is to raise it so it lands at the exact same height (Z) as another point/corner somewhere else in my model, I don't care about matching X or Y, just the height.
I remember doing this before with Osnap's "Project" option turned on, dragging the Gumball's Z arrow and hovering near the target point so it would snap the height over, but for some reason I can't get it to lock on anymore. I've got End, Point, Vertex and Project all checked in Osnap, and I even see a dotted tracking line show up sometimes, but it never actually grabs the point the way I remember it doing before.
To make things worse, my computer got formatted recently and I lost my entire old Rhino setup/settings, so I'm not sure if this is a config thing I had tweaked before and forgot about, or if I'm just doing something wrong. Does anyone here know how to fix it, or knows what settings I might be missing?