I have a form process that invokes a workflow which retrieves the form variables and then performs a "for each row" action on one of the tables.  The first time I ran this workflow it worked perfectly; however, now it does not recognize that there are rows in the table.  When it gets to the For Each Row activity, it says there are zero iterations.  Also the retrieve business process variables tokens are blank for all tables in the form when I look at the token tracking data in Workflow. For other variables, the token values are accurate, only the tables are empty.

I've tried refreshing the retrieve business process variables activity, to ensure that the table name references are accurate, and checked the submission id to make sure it is looking at the correct form, with no change in the results.

Any suggestions you have for troubleshooting this would be greatly appreciated!