@pnsibande2310 Typically the shutdown occurs when there are unsupported items in your PowerPoint file. I would recommend checking:
- The slide size is the same as or similar to what you are trying to import
- In the slide master to make sure you delete anything not in use
- From the slide master and on all pages, you don’t include any audio/video/images that are in older formats
- Check to see that you don’t have an unsupported transition on each page or items in your title
Here’s a guidelines document about the importing PowerPoint process for reference: https://community.trivantis.com/knowledge-base/guidelines-importing-microsoft-powerpoint-content-lectora/
If the issue persists you may want to contact Trivantis Support with your title and PowerPoint. Or you can share it on the Community for troubleshooting.