My next and previous buttons do the opposite of what they are meant to.
Whenever I click next, iTunes goes to the previous song. Likewise when I click previous it goes to the next song instead.
I believe everything is up to date, I have iTunes version 12.1.2.27
At first I simply tried closing and re-opening the program but it did not fix the problem. I then tried restarting my mac completely and I am still getting the same problem.
MacBook Pro with Retina display, OS X Yosemite (10.10.3)