Copying a Static Mesh actor from the level and pasting it into a Blueprint as a component does not retain any of the values of the copied actor.
Reproduced in 4.7.6 binary, 4.9 Release (//depot/UE4-Releases/4.9/Promotable-CL-2641355), and Main (//depot/UE4/Promotable-CL-2635815).
Edit MattK: Is the paste not properly reading the copied property values when pasted into the BP editor?
1. Create a new First Person Blueprint project
2. Create a new Actor Blueprint
3. Select one of the Large Cube static mesh actors in the level
5. Paste in the Blueprint's Components tab
A new Static Mesh component is added to the Blueprint, but it does not retain any of the values of the mesh actor in the level, including mesh and transform values.
The new component in the Blueprint retains all the values of the static mesh actor in the level that was copied.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-19599 in the post.