Editing a session on Mac OS 15.1 or iOS 18.5 just shows a blank grey screen.
Just had a reply from Hedy, this will be fixed in a futire update. In the meantime the session can be edited on the device that the session was recorded on.
I have noticed that the Clound syncing across devices - Mac, iPad and iPhone is a bit random at the moment.
Hedy is a great app though, and I'm making good use of it.