Three times a year or sometimes quarterly, our school district takes a day and we spend it revisiting expectations. Kind of like all of the things you do within that initial first day or week of school. We go through centers and we address certain or specific areas of the school building and schoolyard and talk about what good behavior should look like, etc.
Sometimes it’s just that break from the norm -- the redundancy for some areas of winter regions to just be able to do a schoolwide reset.

I am finding the same thing is happening in my classroom Clark. I have no explanation as to why it is happening, however, we are revisiting routines and procedures daily. I am also trying a variety of tracking methods to determine when and why these behaviors are arising now.
We are hopeful that once our weather warms up that we can do more learning outside and give more movement breaks until then to see if that helps.

I completely agree, Gina. I am in a K-4 setting, but we stop and review expectations after every significant break or even long weekend.
Having visual models of expectations posted in all student locations like the cafeteria, bathroom, playground etc. also help keep students accountable.