AOE4 MASTERY BUG

I TRY TO COMPLETE RUS MASTERY LAY SIEGE I DO ALL THE STEP CORRECTLY MULTIPLE TIMES AGAINTS BOT AT FIRST I TRY TO RESEARCH 2 UPGRADE IN THE HIGH ARMORY AND TRY TO SURRENDER BUT IT DOESNT WORK SO I TRY IT AGAIN BUT THIS TIME WHAT I DO IS I WIN THE GAME BUT IT STILL SAY I NEED TO DO THE STEP AGAIN EVEN THO I DO IT ALREADY
PLEASE HELP ME FIX IT THE OTHER MASTERY I DO I DID IT WITH BOT AND IT WORKED
SORRY MY ENGLISH IS BAD