How can I rotate a bone to match a world rotation?

Development Programming & Scripting Blueprint
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1

I’m trying to match the hand_r rotation with the camera, so that my hand always stays in the same place with respect to the camera.

I first compute the intended hand position and rotation with:

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Then I apply it on a VB hand_r bone so that I can do a proper hand_r IK:

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The result does move & rotate with the camera, but the hand_r rotation is 180deg or so rotated, so that the gun faces in the wrong direction:

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I imagine this might be due to the VB hand_r having its own original animation rotation?

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What can I do to have, as end result, the gun point away from the camera?

Thanks,
r.

2

Don’t know much about this area, but I’d say your hand socket is pointing the wrong way

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The X is pointing up the arm, shouldn’t it be pointing towards the fingers?

3

That’s how the reference bone is…