To use some of Seesaw's tools, like the video upload tool, you must allow third-party cookies and site data in your browser settings.
- On your computer, open Chrome.
- Go to Chrome > Preferences or tap.
- Go into Settings.
- Tap 'Advanced.'
- In the 'Privacy and Security' section, tap 'Cookies and other site data.'
- Uncheck the 'Block third-party cookies and site data' option.
- Refresh your browser window to reload your new preferences.
Here's an FAQ from Google about this issue.