Prevent your computer from going to sleep.
Keep Teams & Slack status 'Active'.
If you aren't ready to pay for a service, there are free tools that can sometimes fix minor corruption:
While the online tool is convenient for one-off fixes, the downloadable software offers additional flexibility: fixvideo activation code verified
MP4 Video File Repair: How to Fix Corrupted Videos ✅ Free Ways If you aren't ready to pay for a
: The technology analyzes video structures to reconstruct missing metadata and broken headers. fixvideo activation code verified