Hi! I'd like to report I'm having exactly the same issue, also (possibly coincidentally) while managing Lyon. Furthermore, when Tolisso's "unavailable" tag went away, he still appeared as injured in the training screen (see screenshot). I could pick him in the squad screen with no issue, but I can't assign him individual training. I can provide a save file of immediately after this screenshot was taken, and my most recent save before then, if wanted @Zachary Whyte