@escapeartist said:
Something I've had happen a couple of times where the select tool quits working is that there are actually 2 faces on the surface. There's no Z-fighting visible, so you can't tell there are coplanar surfaces there at all. Usually happens on complex surfaces that have been edited a lot when it happens to me. Anyway, turn on "view hidden geometry", get rid of a few edges on the surface you are working on (it will obviously disappear), and then rebuild it. See if that doesn't take care of it.
Coplanar surfaces may have something to do with the disabled Select tool. But my current problem, at this moment, is that I have a component selected, and I can't deselect it. I used it to Intersect With Context, then moved it away so I could select the outline left behind. But the component remains selected and highlighted no matter what else I do. I used Close Component in the right click menu, and it was deselected. But I still can't select anything else. Maybe I'm not holding my mouth right when I click????
After shut-down and restart, everything is back to normal. But I'd like to know what the hang-up is.