Anyway, I decided to change my thread from a cotton one to a polyester one and all of a sudden everything started working again. Hooray! So I quickly finished my block before there was time for anything else to go wrong... Here's my block.
This whole block of the week thing is interesting. Not only am I learning some new techniques and working on my skills, but I am learning a lot about my machine. I never thought I would enjoy this so much.