As described here where a developer contracted someone $100 USD to fix the issue for their game, attachment points for packages are not individualized – they all use the same attachment points as the no-package. As shown in the left image below, this causes joints to break apart (see the arms) when animating – the right image shows what the limbs would look like with proper attachment points.
This does not necessarily require animations to create visual oddities however. There are packages that don’t fit together at rest:
This hides all the work put into the R15 packages and makes them look like they were just thrown together, in addition to being very sore on the eyes. It’d be great if this could be addressed at some point. @TheGamer101 could we potentially expand the Roblox Catalog Github Repo to include packages? If so, we could crowdsource the fixing of the attachment points which would take a lot off of the asset team’s shoulders.