Binlog truncated in the middle of event; consider out of disk space on master

Experts,
After applying latest MariaDB patches on Replication master and Replication Slave, we are facing a strange issue.
Once per nearly 3 hours (random time) replication process at slave stopped with following errors

2018-09-04 6:33:28 140064771901184 [ERROR] Error reading packet from server: binlog truncated in the middle of event; consider out of disk space on master; the first event 'XXXXX-bin.000727' at 431628288, the last event read from 'XXXXX-bin.000728' at 399111340, the last byte read from 'XXXXX-bin.000728' at 399111359. (server_errno=1236)

2018-09-04 6:33:28 140064771901184 [ERROR] Slave I/O: Got fatal error 1236 from master when reading data from binary log: 'binlog truncated in the middle of event; consider out of disk space on master; the first event 'XXXXX-bin.000727' at 431628288, the last event read from 'XXXXX-bin.000728' at 399111340, the last byte read from 'XXXXX-bin.000728' at 399111359.', Internal MariaDB error code: 1236

This issue resolves when i submit command "stop slave; start slave;" .
This is something weird and strange because let's assume if problem persists on master replication server how it gone away by "stop slave; start slave;" simple command.

That make me uncomfortable and unconvinced.
thanks
Devang