No connection through proxy

Hi there. Nice work with this addon, it works for me for my local plex library, but when I try to connect to my home library from work nothing happens: I can see only "Refresh Data" and "myplex Queue"
I've configured it with my plex login/pass. Also I'm using proxy which is correctly entered in XBMC settings and works for xmbc itself

I'm using the 3.4.6~beta3, also tried 3.4.6~beta1.

Any thoughts?

Oh, and the library is accessible through native plex app, so the server and ports are ok I suppose 

Well... I enabled debug and checked log:
Unable to connect to my.plexapp.com Reason: timed out

So it seems not to respect xbmc proxy setting

I've tunneled the 32400 port through ssh to my NAS, and I can see in logs that the plugin gets an answer about the library, but then it tries to connect to plex servers and fails