Hi Jantzen,
Does "forum" mean "form"?
I set an "Enters Viewport" event in my property, I see it only fire once in one "session".
"session" means that I only see one request in one "browser" session. I didn't clear cookies, when I enter the site with same browser, It also fire once.
I noticed that "Enters Viewport" fire only once in a session, why I didn't clear cookie and receive another request?

thanks,
ZZ