Investments not visible in the summary of the vAT declaration

I was viewing the vAT declaration summary from quarter 2. I asked to see the details of the expenses. According to this summary, I would not have made any investments (it states €0.00 in investments). However, I entered four purchase invoices as investments in my expenses. When I go to the depreciation summary, I can see those four purchases. How did I end up with €0.00 on the vAT declaration?