行き違い
JLPT N1 · Nounゆきちがい(yukichigai)声调 0
crossing without meeting (e.g. letters in the post, people on the road); going astray; difference of opinion; misunderstanding; estrangement
2人の間に行き違いがあったらしい。— There seems to have been a misunderstanding between the two of them.