Checkmarks Issue / Tick Box Issue

Hi Team,

I love your plugin – thank you for it.

I’ve just noticed that for no particular reason, the tick boxes in the quiz stopped working. Here is a good example. When I start the quiz and choose an answer, it is highlighted with color but the check mark in the box does not appear – the box just stays empty. There are no checkmarks either when “Skipping to results” and going through the answers.

I’ve tried deactivating all plugins but it does not seem to resolve anything.

How can this be fixed?

Thank you.