Pitch Correct causing fluctuations in volume?

Cubase Elements 9.5: Using the built-in Pitch Correct effect on vocals is creating these really weird fluctuations in volume. It almost sounds as if the volume is being amplified only when the pitch is actually being corrected (i.e. when the vocalist was out of tune). So the louder volume randomly cuts in and out.

The raw track sounds normal (volume-wise) when Pitch Correct is off, and I’ve used this plugin in the past without any issues. Any idea what might be causing this?