INSTAGRAM – “FOLLOWING” count not accurate. Error?

Instagram says I follow 401 accounts, but when I count the total that I actually follow on Instagram, Webstagram, or Statigram, I can only account for 100.

If I use any "follow/unfollow" apps, it still cannot account for who the other 301 accounts are.

InstagramCOM/Dave_IC3crew is link to my account.

Anyone know why this is?