Hoping someone here will recognize what happened and perhaps be able to help me or point me in the right direction.
I was stitching along just fine. I was doing paper-piecing and stitching through freezer paper as well as fabric. 100% cotton thread. Stitch length slightly more per inch than usual. The needle broke. Not unusual; it happens from time to time. I put a new needle in. Subsequent stitching resulted in the top thread was not catching the bottom thread at all. I changed the thread; re-inserted the same new needle. Improvement. But the upper thread would periodically skip pulling up the lower thread, resulting in something akin to Morse code: dot dot dot dash dot dot dot dot dash etc. -- the "dash" being the missed/skipped stitch.
Any ideas what's causing this? And better yet: how I can get it back to normal?