Empathy is not in line with the much discussed guidelines

[Nicolò Chieffo]

as I was saying 2.27.3 is already old.
You need to be synchronized to a current git version of empathy,
weather it is self compiled or from an external PPA.

Anyway most problems are not in empathy, but somewhere in telepathy
protocol managers (for instance the current ubuntu version of
telepathy-butterfly does not work)