Changes are not detected by the co-author of a PowerPoint 2010 or 2013 presentation

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Symptoms

A chart object in a Microsoft PowerPoint presentation is changed programmatically by using the object model. However, if the presentation is saved, another user of the presentation cannot detect changes that were made during the co-authoring session. Therefore, the changes are not merged into the user's presentation.

Workaround

To work around this problem, select the chart object programmatically. Then, change the chart object.

More Information

For more information about co-authoring in PowerPoint, visit the following Microsoft website:

Work on a presentation at the same time as your colleagues

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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