If you get an error "Runtime error with custom interface in empower-slides or similar.
This is not an empower error, only a setting that must be deactivated in PowerPoint. Please go to the Settings / Preferences of PowerPoint for Mac.
In the settings, there must be no check mark in the 2nd checkbox: "Show add-in user interface errors".
This must be deactivated. This solves the problem immediately.
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