Something's going on with the spaghetti squash. I've looked at a bunch of disease photos and I can't match it up. Maybe it's nutritional? Shout it out if you know what's going on or even have an idea I can chase down! I've never had this particular problem with cucurbits before.
Oh, and ignore those two small squash bug egg masses. They're gone now, along with two bugs I found doing the nasty under an adjacent leaf!