The only way i found to fix this issue is using pre game editor and delete competitions "International premier league cup s'21 and s'23 (this is extint but i deleted anyway) .
Till we got a real fix there is no mini champions league to your B teams.
Can you Please fix these? Double B teams Because of international Premier league s21 Cup i check with benfica but im sure Porto and Braga as the same error, Rules error like Create if is not found! Thank you in advanced