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Excel add-in stopped working with Office 365 update 2103

I am selling a Excel add-in written in C# that uses the "IDTExtensibility2" interface.

A number of customers found that with the latest Office 365 version, 2103, the add-in stopped working.

Reverting back solved the problem.

Is this a bug in the update or did Microsoft make some changes to Excel in Office 365?

Regards Torben

office-addins-dev
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TorbenLaursen-7991 answered

The latest Office update has fixed the ussue.
So it was a bug in Office.
Installing version 2103, 13901.20462 solved the issue

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