When I click on the Twitter icon it takes me to my Twitter account, adding the headline, but now url to the article. I have the "enable Tiny URL integration" feature activated in the K2 parameters.

same problem here.. really annoying... any ideas anyone?

This problem was resolved for me when I added "img,p,br,strong,em,span,a,div" to the "Enter which HTML tags not to strip in fulltext (and introtext)" in the k2 parameters.

See my response in: community.getk2.org/xn/detail/3536014:Topic:14532?xg_source=activity