I just skipped a sentence that I had just listened to because I couldn’t decide. Then, instead of hitting “Play” on the replacement sentence, my mouse slipped and I accidentally hit “Yes”. My accidental validation was recorded, even though I hadn’t had a chance to listen to the new sentence.
Expected behavior: the “Yes” button should be locked after skipping, until the newly drawn sentence is played in full.
Additional suggestion: allow us to go back to a previously listened/voted sentence, to change our answer.