Bug in pasting of metafile data from clipboard
Illustrator misinterprets data from a image exported to the clipboard as metafile. It inverses color of certain parts of the image after paste.
This problem is occurring in Creative Cloud CC2018 and CC2019. It is a bug that has been present in many previous versions of the Adobe suite, at least since CS6.
Running Windows 10 pro 1903 (18362.239)
The effect of the bug is demonstrated in the attached Word file.