Accents in Spanish

Speak the word Set doesn't allow me to write words with accent in the solutions. I mean, if I write, for example, "¿Qué hora es?", and pronounce correctly, it will say "incorrect". It will offer these "correct" options:

I find this app extraordinarily relevant for my classes, but I can not teach my students incorrectly written words without accent. I have seen that the accent does work on this example:

https://h5p.org/speak-the-words-set

What am I doing wrong?

Thanks!