When moving an attachment to a new instance using “Paste into at original location”, it acts the same as a normal paste.
Expected behavior
I expect it to maintain the WorldCFrame, where the pasted attachment is in the same location as the original one I copied.
This is intentional behavior. It’s really the name being a bit of a misnomer.
“Paste at Original Location” really = “Paste and don’t muck of any of the properties or do anything weird just leave it exactly how it was please and thank you”.
I think most devs would find it a bad idea for it to start diverging from that behavior and start editing the properties, the idea is that it’s supposed to be a way to copy something over and not have to worry about any of its properties changing getting changed.