Outlook addin + shared calendar + Recurring appointment

[Sokrat Saydahmat]

Hi,

I have installed an Outlook addin to update the fields in my custom form, it
works okay if I work on my own calendar If I work on a shared calendar(I
have the right as "Editor") in my PC, create a recurring appointment, saved
it, then try to reopen the recurring appointment in "Open This Occurance"
selected (In Day/Week view) Outlook will prompt an error message of "Cannot
read one instance of this recurring appointment. Close any open appointments
and try again, or recreate the appointment.", I tried to debug the code, but
the error message happened before the "item_open" event.

Can any one let me know how to deal with this?

Thanks.