The AI, specifically how low rated teams behave on high difficulties
The commentary is often wrong, wrong names for players
Extremely slow manager mode which often freezes
Annoying manager mode email for nothing eg(schedule change)
Closing manager mode inbox takes forever
Pass assistance on can make your passes random
Players shapeshifting during cut scenes/replays
Arena sometimes being an empty blue shell and the morphing you through the GK
Offsides called whether the player received the ball or not
Skills, as above Wycombe doing Ronaldo Chops and McGeady Spins
Micro pauses for 4 or 5 seconds which freeze the game
The random boot changes for real life players
Foul bugs where you make a tackle but you get a free kick
Crashes in the team management screen online
Unlimited money glitch in manager mode
Various voice comms issues, garbling/having to start comms during match
Never showing the right player during substitution cut scenes
Manager never subbing you in manager mode then saying you are too tired to play next match
Some players have the wrong haircut when the camera is zoomed out
Corner flag glitch where players run to corner flag and continually dance
Goalkeeper glitch where he catches the ball then falls over the line with it in his hands
No handballs online
Custom chants are way too quiet unless you use software to increase the decibels