Sounds obvious, but have you tried signing out of uplay and back in again? Also, is uplay linked to your Steam account? Mine was, and I �unlinked� it. Steam [censored] about with the controller settings all the time, but the game automatically recognises it as a DS4, without the need for the Input Mapper [DS4 tool].
I had a nightmare trying to get a stable frame rate after using the Nvidia control panel to change the native frequncy of my screen down to 30Hz. so I decided that restarting after every change was safest. Now it sits locked at 30fps in 4k High. It manages 4k Ultra at around 50fps, but rare[ish] drops then go below 30fps and I can�t tolerate stutter on any game.
So solid 30fps is best. I�ve had four or five crashes so far, and I can�t record gameplay at all for some reason. Shadowplay records a black screen in game, but manages to capture the menus. Wondershare captures sound only, and GameDVR doesn�t recognise it as a game, full stop. Which is a shame because my 60mph head on collision with a Bison on a quad bike [me on the quad bike, not the Bison] was hilarious, and is what FarCry open worlds have always been about for me.
I�ve tried turning off the uplay in game overlay, but to no avail.
Also, the arcade mode has some fun user created content. Haven�t been anywhere near the PvP rubbish, just assault and survival modes. You earn money and perk points every game you play, but surprise surprise, a glitch is stopping them from bolstering your ampaign mode finances. The banner says something along the lines of �We are aware of the problem with arcade mode - please bear with us.�