Our Engineers have determined that Google Drive is encountering playback issues within Google Drive itself and/or when that video is shared and played within Google Classroom. This means, you may have some issues with how you and/or your students will be able to view videos when played within Drive or in Classroom 😔 We are currently looking into this issue and will post an update within 24 hours.
In the meantime, please download your videos as a workaround or upload them to YouTube for viewing.
If you are seeing this you can add your voice 🗣 to this issue here: https://support.google.com/drive/thread/86840466?hl=en
Thanks from the Screencastify Team 😊