PreGain automation bug

Hi! I’m experiencing an issue with automating the PreGain/Input gain. Any anchor point that has the same value as the previous one (which is everytime I want the PreGain to be constant) comes with a sudden drop in volume, as if it goes down to 0 and then fades back in.

I’m running Cubase 8.0.30 (64-bit) on a MacBook Air running Mavericks.

Thankful for answers!