Create a new user
run a rake task like, e.g.:
RAILS_ENV=production bundle exec rake chf:user:create['eatson@chemheritage.org']
Resque admin panel
If a file doesn't get characterized correctly the first thing to do is check the resque admin panel. There you can view failures and restart jobs. If you see a clear stack trace pointing to a bug this may not help, but if you see a vague error about "deadlock?" this might work. Restart the job and then check the site to see whether the derivatives came through.
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