> For the complete documentation index, see [llms.txt](https://eventx-hq.gitbook.io/knowledge-base/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://eventx-hq.gitbook.io/knowledge-base/livestream/troubleshooting-and-use-cases.md).

# Troubleshooting & Use Cases

Resolve common video upload issues and learn how to manage polling visibility during live sessions.

## Overview

This section provides practical troubleshooting guidance for video uploads and targeted use cases for managing your live streaming experience, including how to control what attendees see during polling.

## Articles

* [Troubleshooting Video upload issue](/knowledge-base/livestream/troubleshooting-and-use-cases/troubleshooting-video-upload-issue.md) — Recommended encoding settings and solutions for video upload problems
* [Use Case: How to Hide Poll Result From Attendee?](/knowledge-base/livestream/troubleshooting-and-use-cases/use-case-how-to-hide-poll-result-from-attendee.md) — Control polling result visibility during live sessions

## Common Questions

**Q: What video format should I use for the Video Library?** A: Use MP4 (H.264 codec), bitrate less than 2000 kbps, and resolution less than or equal to 720p.

**Q: What should I do if my video upload is too large?** A: Compress the video using a tool like freeconvert.com, then re-upload. You can also check your video properties at metadata2go.com.

**Q: How can I prevent attendees from seeing polling results during a live session?** A: In presenter mode, do NOT click the "Show Result" button. Attendees can vote without seeing results. You can view results inside the portal after deleting the presenter mode window.