As one can see in the image below, I've got a player on the pitch, who has been subbed off? Now how can this be? Well, what happened was that I used the new sub-system at the bottom of the interface when in a match, and chose to sub James off, and put Aleña on. Then I changed my mind, and changed it to Richarlison. Then I realized this might screw up the system by subbing Alena on and then replacing him with Richarlison, so I quickly went in to the tactics view and changed them, as to try and stop this from happening. This made it so James got subbed off in the 71st minute; Richarlison got subbed off in the 72nd and on in the 72nd minute; Alena got subbed off in the 72nd and on in the 72nd minute. This used up all my three subs. Not a big deal for this fixture, but seems like a weird bug. Weirdest part being the fact that a subbed off, and therefor greyed out player, is on the pitch playing?? Thanks for your time, and I hope this can help shed light on a weird edge case scenario.