[Bug] "Solve" button unavailable after "Listen" button is pressed in an exercise until "Repeat" button is pressed (Home section, EN)

[HappyEgoiste]

Preconditions:

1. Log in as an existing user.
2. Choose EN in the language selection.

Steps to reproduce:

1. Open any exercise in [Speech exercises]/[Words]/[Home] (https://brainup.site/groups/4/series/9/subgroup/74)
2. Press the red "Play" button and listen till the end of the exercise.
3. Press "Listen" button.

Actual result: "Solve" button becomes unavailable until the "Repeat" button is pressed.

Expected result: "Solve" button is available.