VCF clips in bandpass with inverse sawtooth CV applied

[TallGirlVanessa]

Example video. See around 1:50.

https://www.youtube.com/watch?v=vcmqhfXEz6I

Here's a still at 1:53. It clips shortly afterwards.

This seems to only happen when the control voltage is asymmetrical and jumps from high to low, and I think some other requirements like slow modulation and low cutoff knob position.

Does this mean the filter is sometimes unstable? Is that intentional?