How do I edit/type in an Input Text field with games uploaded to Scirra Arcade?

I usually prompt for the player name (scoring), and I just recently realized that I'm unable to edit/type in input text fields in Scirra Arcade. It does, however, recognize my keystrokes for game controls. On my uploads to itch, I'm able to type in the text fields just fine. How can I fix this?

You can see this in action in both my games on Scirra Arcade (With WatchTrader, you get a name prompt in the beginning. In Gun in 60 Seconds remix, the prompt comes after finishing a round).