Thanks for the details. This matches a known bug with the chat input in the editor layout. After certain interactions, the Lexical editor in the tab gets out of sync with the real cursor position. That’s why Backspace, Up/Down, and Ctrl+V act somewhere else than where the cursor looks. We’re tracking the issue, but I can’t share an ETA for a fix yet.
What helps right now:
- Quick workaround: press
Ctrl+Shift+P, then runDeveloper: Reload Windowin the tab where the agent is open. After reload, typing works again until it gets stuck again. - More stable option: switch from the Layout editor back to the Agent panel in the side panel. The bug doesn’t reproduce there.
Related threads for context:
- Chat typing bug when open as an editor in separate window
- Backspace Not Working Properly When Chat Panel Is Detached into a New Window in Cursor
- Editor in a new window, zoomed in, typing from right to left
About the textbox size and Up/Down acting like history, those are separate points and they’re also noted. Once I have an update on the input fix, I’ll reply in this thread.