Dear Corrado_7614,
Greetings,
Thank you for posting in the Microsoft Community.
Based on your description, I understand you are encountering an issue with PowerPoint presentations in Teams. To better assist you, could you please provide more details on the following:
- Are there any specific error messages or codes displayed when the issue occurs?
- Are you encountering this issue on the Teams desktop app, the Teams web app, or both?
- Are you using Teams on a Mac or Windows operating system?
In the meantime, please try the following troubleshooting steps:
- You can clear the cache by following the instructions in Cancellare la cache di Teams - Microsoft Teams | Microsoft Learn
- Ensure you are using the latest version of Teams. You can check for updates by clicking the three dots next to your profile picture in the Teams app and selecting Check for updates. Alternatively, you can reinstall Teams to get the latest version from Microsoft Teams Download.
I look forward to your response and thank you very much for your patience.
Best regards,
Mia - MSFT | Microsoft Community Support Specialist