Nice is an airport that has pitfalls, gotchas, bizarre and very complex routings and weird approaches all rolled into one, along with sometimes very indifferent ATC.
If you go there you pay very strict attention, brief very carefully and hope they don't change approaches on you at the last minute (as they are prone to doing) requiring a rushed brief for the new complex approach. Followers of the Magenta Line don't like the Prescribed Tracks approach as there is several miles of close-in low level visual flying with big turns obscuring the terrain close alongside.
All your antennae are out at Nice, it is a place to be very careful indeed.
Perhaps no one told THY that.