Sorry it didn't work for you! Everybody is different and I tried to include a variety of universally tear-inducing videos. But of course it won't work for everyone. I've found it works for about 90% of people.
What videos make you cry? Curious to see how they compare. Also, not all the videos on the site are sad. Some are happy tears.
Here is one example: https://youtu.be/y02xPRX6vCE?t=1376
Basically anything absolutely genuine and authentic, especially where I have enough information to understand the context of their emotion so that I can relate better.