The first bug appeared on the fifth day in the evening in a dangerous room (in the previous build, Laura was topless)
The second bug on the day of the appearance of Emma (the sixth day).
At first, I entered a dangerous room without returning to class. Ignore leads to the shower.
If after the scene with Emma, the ignore also leads to a shower and there you can meet Emma
Checked further - a bug arises every day in the evening. On the 7th day, you can enter the dangerous room in the morning, then after two lessons a bug happens and again the ignore leads to the shower.