Hey, this is a known bug with prompt input in the separate Agent pop-out window (Agents Window). It happens on Windows, Linux, and macOS. Main discussion thread: Editor in a new window, zoomed in, typing from right to left
Temporary workaround: Ctrl+Shift+P → Developer: Reload Window. This will fix input until it happens again.
We’re tracking the issue, but there’s no exact ETA for a fix yet.