There is a new setting in the SCLogin module parameters called 'Auto Focus Username'. Please enable this option. We had previously added this functionality (without a setting) to be on by default and it was causing problems with existing sites, so we added the new option to control it. If toggling it on does not work for you to solve the problem, please let us know. This was the only change the in module for the 7.1.2 release.
-Melissa