When you copy the url of a page in IBM Connections it contains language information in it — like ending with ?lang=en for blog links or http://<root>/wikis/home?lang=en#!/wiki/... for wiki links.
The problem is if you share this link like this (without removing the language formatting part), the user that opens it will get his IBM Connections User Interface overwritten to this language.
This is specially annoying if it transpose you to a language you can not read (e.g. japanese)
The best solution would be to completely remove this language information from IBM Connections links. The language shall only be taken from the user settings (not from the link url)