Meshes very distorted (and not in the desired way)

[Punchey]

I've tried on both 2019.1.9 and 2019.2, but all the examples that come with the project are very distorted.  For example, this is what pulling on the dragon does (see attached).

I can't seem to see any stable result resembling what is shown in the video.  Any assistance would be greatly appreciated as currently, it is unusable.  Thanks!