Ask HN: Is this known Facebook ads hack?

If you will create an advertising campaign on Facebook as follows (here is the sequence that can be reproduced): 1. Create 10 audiences 2. For each audience create the ad. 3. For each ad upload 6 images.

After that during short period of time(several minutes) in Google Analytics(Real-time report), you can see a large number of clicks to the site(I had more than 300) Later in Fb Ads Manager these clicks were not listed. What it is, why it's happening?