航空公司应该也是按照IATA的信息去确认能否出登机牌的。根据IATA的信息,有提及
Warning:
Nationals of China (People's Rep.) arriving from China (People's Rep.) must hold the "China (People's Rep.) Travel Permit to and from Taiwan (Lu Bao Zheng)".
然后刚好你的航班就是从北京飞过去的,考虑到这一个可能得争议点,马德里那边可能让你到达北京再处理