The sewing machine gods must be angry

I've been happily piecing away on my Featherweight, when today it starting looping on the bottom and skipping stitches. I re-threaded, put in a new needle, took the bobbin out and put it back in - still issues. Drat. So I drag the trusty FashionMate downstairs and set it up. SKIPPED STITCHES. Maybe it's just too cold to sew. I'll go cut, I think.