I've read that the user is allowed to browse inside missions without entering with the character as said here.
When the user browses "Foo Bar" without entering with the character, it shows the following message: To answer the question, you must enter the adjacent tile.

I think it's kind of confusing and some users might not figure out why the answer box is disabled (even considering it is auto-translated when another language than EN is selected).
They might not realize they have to stop browsing and move their character inside the "Foo Bar" pub, and then click again on "Install Java" to be able to paste their java -version output.
Maybe the text indications could be more specific or just show a menu asking the users if they want to bring their character to there?