If text is printed while the game is waiting for player input, a copy of the input line remains directly above it. According to this page, it’s intentional, but it makes games with many real-time events very hard to read. Is there a way to remove the extra line and input if the player never pressed enter? By overwriting it with the next one, maybe?
Example from aforementioned site:
What do you, the detective, want to do next?
>look at the v
Miss Marmalade enters from the north. She pretends
not to see you, busying herself with rummaging for
something in her purse.
>look at the v|
Since none of the tiny but intrepid crew of T3 experts has answered, I’d suggest you email Mike Roberts about this. I’m pretty sure you can find his email address in the documentation somewhere, or on the TADS website. If you can’t find it, PM me and I’ll share it with you.