Hey, @Matt_Mireles, thanks for your patience and sorry for the delayed update.
Your issue is on our radar, it appears related to keyboard input problems on macOS 26 that we’re tracking. In this thread Modifier (Cmd, Option, etc.) keybindings stop working in editor-area terminal tabs starting v1.6 users report similar modifier‑key issues on macOS 26 (Tahoe), and the team is investigating.
In your case it’s more severe since it affects core text editing.
In the meantime, could you please confirm whether you’re on macOS 26.0.1 specifically, or a newer patch? Also, does the issue occur in both regular editor files and terminal tabs, or only in editor files?