I think some of the issues people are having relates to what brand of peanut butter they are using. (howsweeteats.com)
Because different brands of peanut butter vary in consistency, you may need to make slight adjustments to the exact amount of peanut butter, honey, and oats that you use. (theworktop.com)
However, if you pick up any popular brand of peanut butter, you may be surprised to see what's inside. (felineliving.net)