Hi! That's strange – this would indicate that somewhere in your data, it ended up with a span that doesn't specify a start and end 
Are you able to find this example in your data and if so, can you share what it looks like?
Hi! That's strange – this would indicate that somewhere in your data, it ended up with a span that doesn't specify a start and end Are you able to find this example in your data and if so, can you share what it looks like?