Why my FaceTime effect not working .

Re: "Why my FaceTime effect not working : The face time effects don’t work like the thumbs up stuff"

Wondering how you are trying to add the effects, and what happens when you try.

You might want to try Apple's method below:

In a FaceTime call:

"open Control Center.

Tap Video Effects, then choose : Reactions: Allows you to use hand gestures to add reactions.

When Reactions is turned off in Control Center, you can’t use hand gestures to add reactions,

but you can add reactions by tapping the icons that appear when you touch and hold your tile in the call.

(Also see: Add reactions in a video call." for hand gestures you can use.)

Above is from Apple Support's article: Use video conferencing features on iPad - Apple Support : iOS 17