Tried your prompt, here's the response now:

"Enter is a five letter word beginning with e and having t as the third letter."

Try again.

"Ether is a five-letter word that begins with e, has t as its third letter, and does not include the letters i, l, u, or h. It is a colorless, highly volatile, and flammable liquid that is used as a solvent, especially for gases."

Try again.

"Emit is a five letter word that begins with e and has the third letter t. It means to give off or produce (something, especially a gas or sound)."

So it was correct only the first time.