I tested out matching questions and was not able to reproduce your issue. Take a look at the screenshot below.
Is this happening for every matching question for ANY quiz? I'd be curious if the issue is happening outside of this quiz. Can you try that out and let me know? Thanks!
I wanted to follow up to see if you are still having issues with matching questions? If so, check out the latest version of the iOS app, 3.18, and see if that fixes your issues.