TyFlow dissapearing in viewport when Zooming In.

[houou]

tyFlow does a fast bounding box calculation that only factors in particles, not their shape vertices. If you zoom in close enough that all particles are outside of the view (even though particle shape vertices are still inside the view) max will cull the tyFlow and your shapes will disappear.

If you run into this situation, you can manually expand the bounding box using the spinner in the debugging rollout of your tyFlow.

Oh! I see, thank you for the explanation. It worked!