A schedule that had been running successfully is now failing with an error “character string is not in a standard unambiguous format"

Issues
#1

If your previously functioning schedule begins failing with the error message Caused by error in as.POSIXlt.character(): character string is not in a standard unambiguous format, it is likely due to a data type change in a date column from the data source.

To resolve this issue:

  1. Open Exploratory Desktop and attempt to re-import the data.
  2. If the problem persists, open the source step and check the date data. If the data is not in a date format, create a new step to convert it to a date, or find the correct data and use it instead.
  3. Republish the content and select “Run Immediately” from the Scheduling dialog to confirm the fix.