I hope you can get it out! Saw your post, but had no answer.

Good luck! I found that the yellow dye from Clover dyes the thread. If you look closely, it may be out of the fabric; but threads are yellow. If not, I apologize. Just wanted to make you aware that it happened to me and I now have 2 tablerunners with lt. yellow thread on white fabric...arghh.

Glad you posted this I am still trying to figure out what to use. i do hope it comes all out!!

Great news!

I washed my little quilt by hand with an old toothbrush and some Dawn dishsoap in a little bowl, rinsed it and hung it up to dry. NO YELLOW LINES this morning. Yeahhhhhhhhhhh!

Thank you everyone for your help. I will NOT being using any more yellow marker pencils to mark my quilting lines. I will stick with the blue, water erasable pens. Much better for easily removing lines. :-D

Wonderful!