Accidentals in the wrong order for multivoice unisons with octaves
Measure 158 of the file. Here's a pic of it, highlighted to show voices.
As you can see, while the second voice is inside of the first voice, their accidentals are outside the first voice. This is not readable. I don't know of a workaround, but it might be that if you turn off auto place you can drag the accidentals somewhere saner and add some leading space to accommodate them. It might be a regression, as I don't remember this being an issue in MS2.