Encore yarn

[ABC's Mom]

I'm working on an afghan for my daughter and in the process noticed that all of the brown yarn I'm using has several splices in the yarn. Not knots like I've encountered before, just one ply in the yarn and it's not easy to see when crocheting, but very noticeable after the fact. I've had to rip several rows out, cut the yarn and restart more than once. There is just a little fuzzy place in the yarn that sticks out and is very annoying.
Has any one else had this problem?