Also, when switched to Spanish locale seems like notifications are coming in Italian.

What does come back in Italian ? Steam or Endless Legend ?

The transition goes like this: Game in French -> Changed to Spanish -> Game in Spanish but notifications seems to be Italian or plain wrong, for example a deal confirmation with another faction shows CONFIRMATO instead of CONFIRMADO.



For the first part of the issue it happens after reboot, Game is set back to French, so I quit and set it back to Spanish.



I recall a possible related cause for this behavior, I've installed a fresh OS on a new SSD and just moved games from my old library where I've set locale to French (I'm learning but it's quite overwhelming) so maybe for some reason these settings are reversed after reboot or something.

So let me get this straight : you re-installed your OS from scratch on a new drive, then re-installed Steam, and re-used your old Steam library from your old drive ?



Could you try un-installing Endless Legend from Steam (Delete Local Content) and then re-install it ?