I don't know why my sweeps keep coming out like this, but they're deviating from the guide curve. It is supposed to be a simple square, but it keeps adding this strange flourish at the top. I have no idea why it's doing this, any tips? I have no idea how to fix this, I've tried to select closed group and open path, but it still does it.
In the Sweep's PropertyManager, under Start/End Tangency, change them both to None.