Have you tried
What is wrong!!!! I am trying to tweak my tape line to make it right because my 1/4 guide foot just ain't cutting it.
Using starch? I don't cut anything now unless I have starched it (regular spray or newer non-flaking kinds). Especially when making triangle anything. Also I have quit using steam until the block is complete, I found that steam will "let" me distort the block. Good luck!
Barb in Kansas