Hello,
1. You may not have the issue with the latest version of Bandicam.
- Download:
https://www.bandicam.com/downloads/
2. If the "Upload to YouTube.com" window closes after clicking the Upload button, set your computer's date and time correctly, and then try it again.
3. If you see the "Unauthorized" error message, please create a YouTube channel and try it again.
- For more information, refer to
https://support.google.com/youtube/answer/1646861?hl=en
Read more:
https://www.bandicam.com/support/tips/upload-youtube/