Hello, The copy and paste functionality doesn't work anymore. It used to work; i have the feeling it stopped working since the last update of Microsoft Remote Desktop. EDIT for clarification:...
Same here as well. Downloaded 10.5.2 from here https://www.macupdate.com/app/mac/8431/microsoft-remote-desktop/old-versions
It fixed the copy/past from local to remote.
Microsoft, please fix.