When editing titles (to take out tags, for instance), I occasionally press Enter while the selection is in the "Title" text box, and nothing happens. After a while, I figure it out:
The problem is that this is off-screen at the bottom, and I don't know it's there!
Please either display the box near the cursor at the time that Enter is pressed, or at least indicate that there is a validation error and that I should scroll down to see it. Maybe put a red border around the title box, with a red asterisk next to it, with a tooltip that says, "see below".