Thanks for reporting this issue, Illustrator team really appreciate this.
We are able to reproduce this issue and it is currently under review.
An error occurred while saving the commentAnonymous commented
using the option key works maybe 10% of the time. Re set prefs several times, no help. I've gone back to copy and paste, old school, but at least it still works in these new bug laden versions of Illustrator that keep getting forced upon us.