We just upgraded to Sage 100 2021 from 4.3.  2 users were receiving error when trying to update inventory items in Inventory module/item maintenance. Reset panels, no customized panels. This fixed the error for 1 user but not the other. The inventory item is updated even if user receives error. Any hints on where to start troubleshooting? Thanks.

Error 65....Window element does not exist or already exits

Program....CI_AuditTracking.pvc

Statement...374

Class....CI_AuditTracking

Method....UpdateAudit