A family of Microsoft presentation graphics products that offer tools for creating presentations and adding graphic effects like multimedia objects and special effects with text.
Hi, Winter
This sounds more like a rendering/file issue than an email issue. PowerPoint for Mac does support SVGs, but certain SVGs, or a slightly damaged deck, can look fine on one machine and still fail in Preview, cloud viewers, or another Mac.
Here are some suggestions you can try:
First, save a copy of the presentation to your Mac’s local drive, reopen that copy, and only share that version. It is recommended that the file not be edited directly from Google drive, iCloud, or a USB drive, because image problems on Mac often start there. OneDrive or SharePoint are safer if cloud storage is needed.
For the 3 bad decks, re-export the affected SVGs as PNGs, then reinsert them. It is suggested that more complex SVGs can render inconsistently in Mac PowerPoint, even when they seem embedded.
If the file already seems damaged, try opening it in LibreOffice, then save a fresh .pptx copy and reopen it in PowerPoint. That has worked in similar cases where image-heavy decks showed the same red-X error. Also make sure both macOS and PowerPoint are fully updated.
Note: This information is provided as a convenience to you. LibreOffice is not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make sure that you completely understand the risk before retrieving any suggestions from the above app.
Thank you for your patience in reading, I hope this information has been helpful to you.
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