Exec_Master_Log_Pos Not Updating

[M F]

Our DBA left without any backfill aside from me (who is not really a DBA). Yesterday I noticed that the slave has been lagging and up to today, the value of Exec_Master_Log_Post has not been updating at all. Seconds_Behind_Master has been increasing.

Reading articles online, I tried to resolve it by running the script below -

STOP SLAVE;
CHANGE MASTER TO MASTER_LOG_FILE='mysql-bin.001267',MASTER_LOG_POS=305073261;
START SLAVE;

In the online content that I have read, the Master_Log_File and Relay_Master_Log_File are the same. However you can see on my slave status that the master already has a new log file. Is there any other way to resolve this aside from doing a mysqldump?

Thank you all for your help!


*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: <master ip>
Master_User: v_reply
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.001270
Read_Master_Log_Pos: 225827119
Relay_Log_File: V-S36-relay-log.000002
Relay_Log_Pos: 320
Relay_Master_Log_File: mysql-bin.001267
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 305073261
Relay_Log_Space: 3492173806
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 72250
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 35
Master_UUID: 4c067d2f-8c8f-11e7-816c-000d3ae00c4f
Master_Info_File: S:\wamp64\bin\mysql\mysql5.7.14\data\master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Reading event from the relay log
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set:
Auto_Position: 0
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version: