CSV Workbench job, replacing dataset: "Given key was not present in the dictionary"
I have a Workbench job that's parsing a CSV and had been working fine for some time, but we ran into an issue with the source system and we want to load a new CSV with a year's worth of data, replacing the current dataset. File format is identical. When I try running the job with the new csv file, I'm getting the error "The given key was not present in the dictionary."
Should I take this to mean that there's an apparent field mismatch between the dataset and the Workbench job?