Hi
Which version of Office are you using?
- Please open one Office app, click File > Account, check the version name and version number under "Product Information".
Does this issue occur with other Office files, Word documents, Excel workbooks?
Where are these presentations stored? Such as local folder, OneDrive or others?
- I suggest you change the storage location for a check.
- Besides, if these presentations are stored on OneDrive, please ensure the specific Microsoft account has permission to access. You may share the presentations to this specific Microsoft account.
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