In reply to questions #16, #34:

There are some content files which can be found both in the SR1 Figures Updater (respectively in the SR1 Full Updater) and in the SR3 Application Updater (they're needed for the Walk Designer fixes). Therefore, applying the SR1 Figures Updater after SR3 could result in unexpected behavior. This was the reason to provide a new Figures Updater as well, which allows to install the SR3s in arbitrary order. So you can either do that, or, if the download is too large for you, just use the SR1 Full or Figures updater before applying SR3.