Hi There,
Can someone please help here where we got this this issue on our IFS with 2 users.

This is the Error Dump
Ifs.Fnd.FndSystemException: Explorer: An Unhandled Exception has occurred ---> Ifs.Fnd.Explorer.Interfaces.FndFeatureNotFoundException: Navigation target is not to be found in the dictionary
at PPJ.Runtime.Sql.SalSqlError.InitializeSqlException(Exception source)
at PPJ.Runtime.Sql.SalSqlError.Initialize(Exception source)
at PPJ.Runtime.Sql.SalSqlHandle.HandleException(Exception e)
at PPJ.Runtime.Sql.SalSqlHandle.Execute()
at Ifs.Fnd.ApplicationForms.cSessionManager.DbExecute(SalSqlHandle hSql)
at Ifs.Fnd.ApplicationForms.cDataSource.DataSourceExecuteSqlRecordList(SalWindowHandle hWnd, SalString lsStmt)
at Ifs.Fnd.ApplicationForms.cFormWindowBase.DataSourceExecuteSqlRecordList(SalWindowHandle hWnd, SalString lsStmt)
at Ifs.Fnd.ApplicationForms.cFormWindowBase.vrtDataSourceExecuteSqlRecordList(SalWindowHandle hWnd, SalString lsStmt)
at Ifs.Fnd.ApplicationForms.cDataSource.vrtDataSourceExecuteSqlRecordList(SalWindowHandle hWnd, SalString lsStmt)
at Ifs.Fnd.ApplicationForms.cDataSource.DataSourcePopulateIt(SalNumber nParam)
at Ifs.Fnd.ApplicationForms.cFormWindowBase.DataSourcePopulateIt(SalNumber nParam)
at Ifs.Fnd.ApplicationForms.cFormWindowBase.vrtDataSourcePopulateIt(SalNumber nParam)
at Ifs.Fnd.ApplicationForms.cDataSource.vrtDataSourcePopulateIt(SalNumber nParam)
at Ifs.Fnd.ApplicationForms.cDataSource.DataSourcePopulate(SalNumber nWhat, SalNumber nParam)
at Ifs.Fnd.ApplicationForms.cFormWindowBase.DataSourcePopulate(SalNumber nWhat, SalNumber nParam)
at Ifs.Fnd.ApplicationForms.cMasterDetailTabFormWindow.DataSourcePopulate(SalNumber nWhat, SalNumber nParam)
at Ifs.Fnd.ApplicationForms.cMasterDetailTabFormWindow.vrtDataSourcePopulate(SalNumber nWhat, SalNumber nParam)
at Ifs.Fnd.ApplicationForms.cDataSource.vrtDataSourcePopulate(SalNumber nWhat, SalNumber nParam)
at Ifs.Fnd.ApplicationForms.cDataSource.cDataSource_MessageActions(SalMessage& message)
at PPJ.Runtime.Windows.SalWindow.InvokeMessageActions(SalMessage& msg, SalContext context, Int32 startIndex, Type startType)
at PPJ.Runtime.Windows.SalWindow.SendClassMessage(Int32 msg, SalNumber wParam, SalNumber lParam, Type startType)
at PPJ.Runtime.Sal.SendClassMessage(SalNumber nMessage, SalNumber nMywParam, SalNumber nMylParam)
at Ifs.Application.Enterp.frmCustomerInfo.frmCustomerInfo_OnPM_DataSourcePopulate(SalMessage& message)
at Ifs.Application.Enterp.frmCustomerInfo.frmCustomerInfo_MessageActions(SalMessage& message)
at PPJ.Runtime.Windows.SalWindow.InvokeMessageActions(SalMessage& msg, SalContext context, Int32 startIndex, Type startType)
at PPJ.Runtime.Windows.SalWindow.DispatchSalMessage(Int32 msgCode, IntPtr wParam, IntPtr lParam)
at PPJ.Runtime.Windows.SalWindow.DispatchThenProcess(Message& m)
at PPJ.Runtime.Windows.SalWindow.ProcessWndProc(Message& m)
at PPJ.Runtime.Windows.SalForm.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
--- End of inner exception stack trace ---
IFs Application : 7.5
Windows environment : Windows 11 24H2