Someone noticed BATs vanishing while entering the site?

Before install brave I usually access
I knew I should turn off brave security to access it, because of cookies and so.
I had some BATs from today, not on my wallet, but earned today.
So, today, I called and open my triangle icon (brave symbol) and I watched, it’s possible to see it, going from 1,* to 0.0 (zero) in front of my eyes.
Then I quickly turn on the brave security to that site, and watch many blocking rising.
To me that can mean one of two possible outcomes:
or it corrupts my brave database where my today’s BAT was stored ;
or scripts are running from that site, and someone got it from my computer.
Is it possible or am I missing something?