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HIK Mapper "Sub IK Active" keeps deactivating

Title says it all. I’m working on Maya 2024 with mGear 4.2.2, and I’m trying to retarget some Motion Builder-cleaned data onto a mesh rigged in mGear. However, although it works flawlessly on the FK controllers, its pretty much ignoring the Sub IK mapping, which makes things for the last pass of cleanup a bit troublesome. The culprit is visibly that the “Sub IK Active” option is unchecked, but here’s the thing: whenever I close the window and open it again, I find it unchecked. I’ve read that Sub IK should be mapped while the character is in source Stance in HIK, which is what I’ve been doing, I wonder if I’m missing something similar. Any help appreciated!

I don’t know the tool, so I can’t help. Just checking though, was this a typo? I’m pretty sure I understood you mean you check it. And then when the window reloads it unchecks?

If you look in Maya’s script output, do you see any messages, warnings, or errors when you try to check the attribute?

Can you share some screenshots which might let others spot an issue? I’ve bumped your user level to 1, in case that was stopping you from posting images.

Looking very briefly at the code for animbits/humanIkMapper.py I see it does some stuff with a message attribute .sub_ik. So maybe you are working on a referenced scene, or a locked scene or locked nodes, where animbits can’t write the appropriate message attribute?