Why wont this tween work?

[Forummer]

If you want to tween an entire model I recommend taking a look at the following thread.

Introduction to Tweening Models

Note (06/30/2021): Due to the release of the new pivot APIs and the thankful deprecation of SetPrimaryPartCFrame, the legacy method of CFraming is now also appropriate and you do not necessarily need to use this welding method. Do note that the pivot CFrame is different from the PrimaryPart CFrame though, so you will have to account for that when writing your proxy objects. Contents Introduction Understanding Tweening Concept of Tweening Models Rigging Your Model 4.1. Setting Up the Root 4…