Animation Editor & Rig Failing

Hi! I’m trying to animate a custom player character rig. The HumanoidRootPart is where it needs to be and the rig loads fine before I test it loading in the player. After I load in the player however there seems to be a bug with the rig creating a joint that won’t move in the ~ void ~

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You can clearly see two new additional joints that quite literally lead to nowhere, versus what the rig looked like before.
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Both models will infact load the animation editor but the parts will not move regardless of any action I do.
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No parts are anchored and the only issue I can think of this being is with the WeldConstraints connected to all parts. (All of those lead to the torso which then leads to the HRP)