@simone.antonello Hello Simone and welcome to the English forums. ☺
First of all, my apologies for the delay of your answer and thank you so much for your detailed bug report.
As for your answer I have to inform that those players missing are players that were already sold, nevertheless they should appear even for those past matches. This problem/bug has been already fixed on the web version and soon it will be fixed on the Apps too. OSM developers are already aware of it. So no worries about this one.
Thank you once again for your patience and understanding. :thumbsup_tone2: