According to this article Japan’s prime minister schedule in Romania was seriously impacted by the local political crisis:
Japan’s prime minister travelled 8,700 kilometres to make a historic visit to Romania — only to find his opposite number wasn’t there to welcome him.
Shinzo Abe became the first-ever Japanese head of government to make an official trip to Bucharest when he arrived on Tuesday (January 16).
While Abe's cancelled his visit to Romania's government, lower level meetings still took place between state officials and the Japanese delegation.
So, if I understood correctly, not being able to meet the prime-minister in person automatically canceled the meeting (no other person can have the discussions on behalf of the Government - e.g. minister of foreign affairs).
Some analysts argued that a great opportunity was missed by not having this meeting at high-level.
Question: Is high-level political meetings not having a "fallback" something usual in politics?