The problems I have encountered so far are:
- Really long matchmaking times (especially when playing as group)
- Getting kicked out of the lobby when playing as group
- Not being able to replace the Bot in a game your group is in
- Mouse cursor stays on the screen when playing with a controller
- Not being able to follow an invite for a group
- Getting kicked out of games because of an error
- Interrupts of the gameplay when the host leaves the session (the delay has been causing me to win or loose duels I otherwise might have lost/won)
- Uplay service not being available (and showing an message on the screen which cannot be closed and distrated me sometimes)
I've also seen glitches where if you get knocked off a cliff the camera keeps falling and falling into a white abyss. I also had some weird tree branch thing show up and run across the whole screen for a few seconds right through my characters head.
Then all the connection issues, literally haven't been able to finish a single game player v player online.