Object floating around in animation

I’m having so much pain with this animation :sob:
In the animation, the other hand is holding the screen but when I get into the game, the screen is floating like has magic

What I think the cause is:
Mostly because in the original anim, the screen wasn’t somehow animatable and then I’ve added it to the animation and then did the final animation. Because of that, the animation might not counting the screen part???

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Original animation without adding the screen (card)
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I still have this problem, if anyone could help.

Any help?
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4 Days and still no help. I only come here when I have no ideia of why it’s not working and still today haven’t been able to discover the error, if someone can help please, please do so.