Easy interval is messed up!

Hello everyone !

I was just studying some cards. There are some cards I pressed easy on. My easy interval is 6 days. But some of those cards I clicked easy on got scheduled for after 7 days some 6 and some 5. How does this happen ? Here is a picture of my options:

anki does this so you don’t have to all of the cards in the same day
like if you study 50 new cards today you won’t have to do 50 cards 5 days later, you’ll do some of them 4 days later, some of them 5 days later and some of them 6 days later.
makes reviewing easier, totally normal.

here you can read more about it, it’s called fuzz factor