I set saturday to my vacation, so that it does not give me new terms or reviews, but it still gives me reviews on Saturday despite setting Saturday to vacation.
I had all my reviews cleared through on Friday. It happened to all of my schedules. One of my schedules is one where I merged Japanese Basics words with Japanese Beginner words, same thing for the grammar schedules. I also have N4+N5 kanji, and a schedule for N3 kanji.
I turned the holiday setting on Saturday two weeks ago. It did not clear the terms that day even though I clicked the option to do so. Then the next Saturday I still had reviews. All my lists are set to review.