Jo misinterprets the task
Here's a brief description of the contestant's attempt. Someone's probably working writing up more detail!
Jo misinterpreted the first part of the task as being about getting into the caravan in as close to 2 minutes as possible, so she left the lab immediately and paced outside the caravan, entering after 1 minute and 57 seconds. She only remembered 1 item.
(Written by Taskmaster Wiki contributors)