Hi, this is a known issue. We are working on a fix. There will be a new release in the next few days, we hope to have copy/paste working on Mac in some form by then. It works fine on all other operating systems as far as we are aware. We apologize for not having addressed the issue earlier.
I don't have a mac to test it on, but I believe the issue has been fixed.

Cheers. Pasting doesn't seem to work either. So please make sure you have pasting working as well.

Looking forward to the new release!