error message: we could not get data from the data model. collection was modified


Board Regular
Apr 29, 2014

I have an issue with saving Excelfiles that have a data model (PowerPivot) included. I can work with the file, refresh the data model and Pivots but as soon as I want to save I get the Excel error message

"We could not get data from the data model. collection was modified; enumeration operation may not execute."

After that the file loses most times all Pivot connections.

I tried it with a complete new file and get the same results. I have installed Office 2013 again but get the same result.

Has somebody an idea what could cause that ?

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