Can't select acrylic fiber type?

In 1.4.2, there is a bug where you aren't able to select the Acrylic fiber type for yarns. This is fixed in 1.4.3, which is under review right now, but in the meantime, here's a workaround:

1. Create or edit a yarn and scroll down to the Fibers section.
2. If there aren't any selected fibers, add a fiber to the yarn; it doesn't matter which.
3. Once the fiber is there, tap that fiber name to bring up the Fiber % popup, then hit Ok to close it.
4. Add another fiber. Acrylic should not be selected, so you can add it to your yarn.
5. Delete the first fiber if necessary.

I submitted 1.4.3 on the 23rd, but with the Thanksgiving holiday, it might take a little longer than usual for Apple to approve it. I'll post here when it's available for download.