Dynamic Lighting - Can't select thin lines

I accidentally selected thin when I drew a line on the map intended for a door.  Now I can't select the thin line (even with dragging and selecting) and thus can't 'open the door'.

I have this problem sometimes myself. If you zoom in quite a bit and then click and drag to select, does that fix the problem?

Sarah Rebecca Cohen said: I have this problem sometimes myself. If you zoom in quite a bit and then click and drag to select, does that fix the problem? I zoomed to 10% and then to 250% and couldn't select it, i'm afraid.

Oh, no! That is a problem. I guess if this happened to me I nuke everything on the dynamic lighting layer with keyboard commands (Ctrl-A, delete) and redo the walls and doors with thicker lines (using the polygon tool rather than freehand, in case that is part of the problem). I might copy the page first in case I figured out the problem later. Wish I had a better suggestion. Edit: Keithcurtis' idea is much better!

Try Ctrl-A (Select All) and then redefine the thickness of ALL lines to "Regular". If you have other elements that might be affected, dragging a selection rectangle around the VTT while holding down the alt key should select only drawing objects, leaving images unselected.