Hi Maggie, This error is tied to the Component Preference docking feature of SS7. Temporary solution is to open the AT.ini file and update the following line in the [GENERAL] section. NETCONTROLS=1 Set it to: NETCONTROLS=0 Save and close. This should fix the DataGridView Default Error. Although not a complete solution, it will work until Bentley issues a priority build. Regards, Zeke
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