I often find that my keys stop operating correctly in the Boards view after I have been using Boards for a little while (manipulating cards, adding and moving stuff). For example, I’ll no longer be able to copy and paste text into a description. It’s as though Boards is interpreting my keystrokes as shortcut actions. Once I close a card and open it back up, everything works fine.
Using Chrome Version 56.0.2924.87 (64-bit) on a MacBook Air.