Hi! I wrote about this in some more detail here:
I'm not sure what's in your data and how many unique examples you have – you could check that looking at how many unique input hashes there are:
from prodigy.components.db import connect
db = connect()
input_hashes = db.get_input_hashes(["energy_patterns"])
print(len(set(input_hashes)))
You could also set PRODIGY_LOGGING=basic
to see if anything else is being skipped.