I'm getting an erratic problem with this - I'm not sure if pidgin was actually pre-installed with kde.
I didn't check and installed the pbi. Sometimes it doesn't work and I get told I need ssl, and sometimes it does.
For a while I thought that using the Twitter launch from the desktop (which I think came from the PBI) was the one that worked.
Using the one from the menu (which I'm thinking might have been there from install) didn't.
However, I'm not sure that this is the case as it just seems to be intermittent whichever launcher I use.