I opened studio around an hour ago, and immediately noticed that the Humanoids in my game looked different. It appears that there’s an error with Humanoid scaling properties on non-player rigs?
I used regular Humanoid scaling properties for R15, and none of the values have changed in these objects or the OriginalSize of parts/attachments in the rig.
This visual glitch also occurs when I insert the same model of these rigs (Not updated since the first photo was taken) into the game.
These NPCs are using the BodyTypeScale set to 1. We recently changed the way body parts scale based on the Type to try to make them look much better. Unfortunately, that did change the way these NPCs look. I tried to make some quick adjustments to the Width, Depth and Head scale to model something close to your original look and feel like that may be the best option. As a proxy, you can try making the width and depth about 72% smaller and the head about 119% bigger to simulate the old behavior when at BodyTypeScale = 1.0.