I just went to add 1 point exp to my RD Mlungisi Nxumalo and when the screen had loaded, all of my players (from what i could tell) had lost about 100 exp points, and it didnt even add the point on! Which i now cant afford because i was only just over the number required! I dont know if you can check this. Im just glad it wasnt thousands lost!

it happens sometimes when you try to add exp you accumulated over night or any other way by coach...

you add one skill, and then some players get - some exp points
thats because training by coach is cumulative for all players, notice that will happen with points accumulated by coach

its kinda weird though you put one skill and than some other player doesn't have exp for his skill

all the best hope i helped