@EA_Cade  Hey there, I have been facing the same issue. Let me explain it to you.

1st, through settings, I select only KEYBOARD

2nd, I go to the customize controls and go to the ALTERNATE TAB where, I assign my keys accordingly A - long pass, D - Shooting, E - Sprint, Left Shift - sheilding, W - Through balls etc. when i save these as CUSTOM A and get into online gameplay, be it FUT, FUT RIVALS, or Outside FUT, Online Club, these assigned keys dont function as they are supposed to instead only a single button does the above functions of shoot, slide tackle, short passes that is the button "S". Please help and fix this in the next update