Help, whats the difference?

Question

I'm super new to Hebrew, and I'm going thru the stages of finally being able to read the words with the nikud. I'm using this modern Hebrew book and on the very first examples this got me confused. It's bugging me: First, they wrote עָייֵף just to immediately write it as עָיֵיף. Is there any difference or is this an error?

Answer 1

The nikud should be under the first yod.