I'm helping troubleshoot a workflow issue - we are using SharePoint 2010. The user has a list with under 400 items in it. He has 3 different workflows. He needs to run his workflows manually on existing list items. Everything works fine for items created after April 24, 2017. He gets a "Value does not fall within the expected range" error when he tries to run any workflow on an item prior to that April 24 ceration date. I created a very simple workflow and tried to run it manually and had the same result. Any ideas of what may be preventing the workflow from running on those older items? Thanks.