What the title says. I can't subscribe a mod in Skyrim Workshop if I click on the http://steamcommunity.com/sharedfiles/browse/?appid=72850&browsesort=toprated button inside of the Data Files option in the Skyrim game launcher, but I can subscribe exactly the same mod if I do that in Steam Client via the http://steamcommunity.com/workshop/browse?appid=72850 button in the Steam library tab.

It seems to me that Skyrim launcher doesn't recognize my Steam account and didn't detect that I'm already logged in on Steam, because Steam is required to be launched before the Skyrim launcher is accessible.
Has anyone else have the same problem or is it just that Skyrim launcher hasn't been updated or need to be fixed first?