How can I disable my leg and foot ik during an animation montage

I have a vault anim montage that looks really bad because my leg ik bugs out during the animation. How can I disable it?

It depends how your IK is setup. A screenshot would be helpful.
If you’re using a Control Rig node it may have “Should Do IK Trace”.

image

No, it doesn’t have that bool. Is there a way to add bools? Can’t find anything on this. In the end I just set the alpha to 0

On mine it looks like this. I believe it’s just what comes with default UE5 Manny.

Every node has alpha to control how much influence it has. You can disable/enable things with an animation curve too.

My game has a lot of curves to control how much influence IK has on hands and feet at that moment.

The alpha on the node may be a hidden pin by default. You have to go under the details for the node. It should be possible to change it from float to bool too but it’s better to do float and a curve or drive a float to interp to 0 or 1 based on a bool so it has time to smoothly enable/disable otherwise you get visible snapping.

Hello, I might not be expert, but I am trying to help you.
How you’re doing:
I believe you using DefaultSlots before leg and foot IK logic. What will happen on that case, is first the montage on DefaultSlot will actually be applied. But afterwards, leg and foot Ik will use arms and legs from the played montage pose to respective ik pose.
Here’s what it looks like:


You see I applied montage using Default. This pic is different from the subject. But consider them as montage and IK. Now IK takes the hands from montage and change their usual montage position and rotation.

How to play montage on top of hand and foot ik:
Here’s what to do. You don’t turn off and on anything. Instead, play montage on top of those IK. First apply IK. Than take your Montage Right and connect IK Output to Montage Input.


What will happen is even though, IK isn’t turnt off, the IK will be applied first. And than the montage will replace it’s pose on top of the IK pose. It is how it’s meant to use I believe. Expensive, but it’s what I do.
image_2024-08-19_190112616
And I assume you have default slot on your montage after finished writing an answer. I don’t know if you came up with any solution since you have no response so far yet.