I have a VehicleBP where I added an Audio component. When I tried to duplicate this component, it freezes not allowing me to move it. The location changes but the icon is freeze.
It is easy to reproduce by creating a Vehicle Template, opening the Sedan blueprint, adding an audio component, moving it to a new position and duplicating it.
I was able to confirm what you are reporting in the binary release of 4.8.1, but tested this issue in our Main branch and the issue does not occur. It seems there was an issue when creating a duplicate of a component the root was not inherited by the original component, but rather the root of the blueprint. The issue is fixed in an upcoming release and we appreciate you taking the time to report this bug.