CB Juice2 Import Does Not Update lastvisitDate Field

Hello,
I am migrating a Joomla 2.5 site to Joomla 3.5, and there is a lot of "junk" accumulated in my old site so I am starting with a fresh install of 3.5 and trying to import my CB Users. I was successful about 8 months ago, because all of my users have been migrated to the new installation, but since then there have been numerous users logging into the live site over that time. I have CB 2.0.14 and CB Juice2 installed on both sites, and when I save the users to a CSV file with Juice from the 2.5 back end, and process them in the 3.5 back end with Juice, using the Edit mode, I get no errors. However, the field called "lastvisitDate" is not updated in the 3.5 site, which is what I really want. If there is a way to accomplish this, could you please let me know? Thanks - Rob