We migrated our SharePoint Site from SP 2010 to SP 2013. We have a designer workflow on a custom list and the workflow has couple of approval task forms. The issue we are facing is, workflow 'Failed on start' only for the first item added on day. Workflows works fine and assigns task forms as expected from the second item. I checked the ULS logs and I see these messages-
RunWorkflow: System.UnauthorizedAccessException: Access to the path 'C:\Users\accountname\AppData\Local\Temp\c1e6ac0b-c897-4e0c-bb6d-a6bae5c4f572\Xoml.c198ca3c_a20b_4eef_b7f0_de437f582651.16.3072.18.3072.dll' is denied The name of the dll changes with every day.
Workflow history show -
Workflow Cancelled === System Account ===Workflow XXX was canceled by System Account.
Error === System Account === XXX failed to start.