Did I miss a change to Autofill?

I'm getting autofill activated every other game instead of every two today. Granted one of those times I was randomly filled top, but it didn't count it for some reason so I technically had autofill two games in a row.

Did I miss something with it? Usually 2 games, then auto then 2 games protected, but I'm getting 1 game protected then 1 activated and so on. Not complaining cause I like playing support, just confused.