Unable to broadcast engines in spark

[bennydean]

Hello,
I am attempting to follow the example seen here for using the library with spark data frames: https://microsoft.github.io/presidio/samples/deployments/spark/

However, I receive the following error which seems to stem from trying to reference the broadcasted engine in a UDF. I have tried researching this quite a bit with no luck. Any suggestions would be very helpful.

Error: pyspark.errors.exceptions.base.PySparkRuntimeError: [BROADCAST_VARIABLE_NOT_LOADED] Broadcast variable 37 not loaded.
Environment: Databricks runtime 14.3 LTS

Code: Pretty much copied from example line for line, just changed the lines in which I read the data into a data frame.