Remote Desktop for Mac version 10.9.0 broke bidirectional clipboard syncing. copy/paste from local to remote works. but copy/paste from remote to local does not. previous version 10.8.x worked correc...
https://install.appcenter.ms/orgs/rdmacios-k2vy/apps/microsoft-remote-desktop-for-mac/distribution_groups/all-users-of-microsoft-remote-desktop-for-mac
I went back to the 10.8.4 and got the copy and paste to work. This is a temporary fix I think but at least I can do what I need to do now.