The API to get the journey planner timetables is currently returning an invalid zip file with a file size of 47MB. Earlier this week when I downloaded the file it was 126MB.
The url in question is (with app id and app key hidden): http://data.tfl.gov.uk/tfl/syndication/feeds/journey-planner-timetables.zip?app_id=[my_app_id]&app_key=[my_app_key]
Is this a known issue? Is there a better location to report this issue?