Mysql skipped some transactions from binary logs after recovered from defunct mode

On one of the slave we faced some issue like it skipped some transactions. After recovered of the EBS issue,

Due to this EBS issue mysql went to defunct mode. when it recovered we observed it skipped 16 mins transactions on binary log.And started replication from skipped position. Can you please confirm why this happened.

This salve is the master of 4 other slaves. So all slaves also affected due to this.