I've noticed this really annoying (bug)? in Dimensions. When I make a model to scale and use labels, and save to CC Library, it seems fine. I then eventually place all my models in a document together for a render and they all:
1) place very far from actual size
2) the labels are severely stretched and skewed.
Forgive my bad example but blurred for some client privacy.
the 4.5 in box example to the left is the file it's built in - not dragged from the library. The 10in & 12in boxes are both placed from my library. You can clearly see that they are obviously way smaller than actual size and the 'label' (I use that method for placing my artwork) is skewed, zoomed, and just all wonky.
Adobe, please fix this! It would make my life so much easier.