Hi Henry,
Sorry for the inconvenience.
I am afraid that I was not able to reproduce the issue of 'Application crashed when using the BarItem shortcut while upgrading to 7.1.0.21 from 3.2.1.0 version.'
I have followed the steps below to reproduce the issue .
1) Created XPMenus with shortcuts in 3.2.1.0 version.
2) Opened the application in 7.1.0.21 and used BarItem shortcuts.
3) NullReferenceException is not thrown.
Please refer the test sample created in 3.2.1.0 version , try reproducing the issue in it and let me know if I missed out anything.
http://files.syncfusion.com/support/Tools.Windows/7.1.0.21/54930/Tools_WF_XPMenus_ShortCut_3_2_1_0.zipThank you for using Syncfusion products.
You can follow up the incident 54930 for further queries.
Regards,
Jaya