Why do the data load process steps vary?

Summary:

We've noticed that the five steps in the data load process vary. The last step sometimes says "consolidate data for consolidation application mmm-yy" and sometimes it says "Create drill region HPL_DRILL_REGIONS".

Content (please ensure you mask any confidential information):

I thought this might be because the data source varies - an ERP ledger versus a .csv file, but this does not seem to be the case as ERP ledger loads have in the past shown the former, more recently has shown the latter, and is currently showing the former in one environment (Prod class) but the latter in a different test class environment.