I've had no issues running simulations in the past, but for some reason today I can't get this one to work correctly:
https://easyeda.com/hsetlik/pulse_source-958a183e1b7e492caeba48c177a14928
I don't get any error message and the WaveForm window opens up when I run the simulation, but the window is totally empty; as in I don't see a grid or anything, just a blank white page. Any insight as to what's going on here is greatly appreciated.
Brand new interactions and interfaces. 
Easy to use and quick to get started. 
