Generating data keeps stalling at 87% complete

I’ve created a fairly complex schema and when I’m trying to generate 15,000 rows two things happen:

  1. Mockaroo sits at 0% for hours before starting
  2. When it does start it stalls at 87% and does not complete

Is there a way to figure out why it’s taking so long to start and why it’s stalling at 87% each time? Ultimately I want to generate 1 to 2 million rows with this schema once I get it fine tuned.