Terminal got an error: Can’t get window 1. Invalid index. (-1719)

Hey guys,

After every execution inside the embedded terminal, I'm getting a

38:96: execution error: Terminal got an error: Can’t get window 1. Invalid index. (-1719)

Recently upgraded Rubymine by uninstalling the old version and installing the new.

- RubyMine 2018.3.2 

- Running on macOS Mojave 10.14

Unsure if related, but RubyMine periodically becomes completely unresponsive and eats up to 300% of my cpu, sometimes rendering the entire computer inoperable and requiring a hard manual reboot just to be able to click icons on my desktop again. There is no indication of re-indexing projects, or anything at all. Just freezes and blows up.

Thanks