I'm using AutoCAD 2015 on a 2D drawing, and usually use CTRL-C and CTRL-V for my copying. Today, for some reason, everything I copyclip and pasteclip comes out as a block reference. It happened first with a single-segment polyline, then I tried a few other objects - dtext, rectangle, closed polyline. Same thing.
The regular copy command still works fine, however. Anyone have any idea what's going on? Is this a setting I inadvertently changed, or a bug?
Also, this is a file I've been working in regularly for a year, and it's just today that I saw this problem for the first time.