Where is the link to Hansang’s troubleshooting book - presentation #2?

I have the link to Hansang's first webinar: https://www.youtube.com/watch?v=3aXSCIWty7o I was also able to attend and view the 3rd webinar online, but I can't find a link to the 2nd one.

Does anyone else have a link to the video for the 2nd webinar?

Thanks!