Hi Fiona,
seems to work fine for me.
Note that by adding the "Send" triggers to every one of your Option Fields, people are submitting their answer after every click of an option. Therefore, they only get the "Correct" screen after getting the "Incorrect"-screen twice, at the earliest.
If you want to fix that, you'll have to remove the "Send" triggers from the option fields and give your learners a "Submit"-button. Alternatively, you can always use the player's integrated "Submit"-button at the bottom right.
If you want to avoid a "Submit"-button and stick to submitting on the click of an option field, you could empty out your "Incorrect"-layer and add a "Hide Layer: This Layer, When Timeline Starts: on This Layer"-trigger to the Incorrect layer.
Regards,
Marc