Vectorworks 2021 is crashing about every third time I move the connection point or adjust drip line emitter direction. As per your tutorial, I'm adjusting the drip line before connecting it to a valve. Sometimes deleting the drip polygon and redrawing helps, but the crashes still continue.
Most often it's a "beach ball of death forever" freeze, but sometimes it's Flash! Gone! No Vectorworks.
Restarted computer. Still crashes.
iMac 27" retina 2017, 40 GB RAM, Vectorworks Landmark 2021. Mac OS 10.15.7.