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Q.

Character animation using IK controller looks different in AnyPortrait Editor and Game Play.
In other words, the leg joints moved by IK are folded differently depending on the situation.

 

A.

(This issue has been improved since the reply.)
The IK algorithm has been changed from the old unstable CCD to FABRIK.
This will output the same result for the same input, so it will look as similar as possible in the editor and in-game.
– https://rainyrizzle.github.io/en/AdvancedManual/AD_FABRIK.html
– https://rainyrizzle.github.io/en/AdvancedManual/AD_MakeIKIntended.html

Additionally, it is possible to add Effectors to the IK chain, allowing you to control how the joints fold.
https://rainyrizzle.github.io/en/AdvancedManual/AD_IKControllerCases.html

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