Copying graphics from CClibraries transforms paths.
CClibraries has a serious bug.
adobe's customer support acknowledged having bugs in CClibraries.
Steps to reproduce
1) Set the profile to “WEB” when creating a document.
2) Text object is made an outline.
3) In the Libraries panel to add graphics
4) Right-click a graphic in the Libraries panel, and choose the Place Copy option from the context menu.
Windows 10 , Illustrator CC2018 / CC2019
mei___ shared this idea
It probably is caused by the web ddocument which has snap to pixel on by default.