MySQL slow log not logging entries

I have an issue in mariadb running in centos where the slow query log does not log entries until you go in daily, disable and re-enable the slow log.

**You go in today and run SET GLOBAL slow_query_log = 1;

**You check that it is enabled by running SHOW GLOBAL VARIABLES LIKE 'slow_%';

**You check queries are being logged after running the above.

**You come in tomorrow, check the log, no entries

**You repeat the above command again and it is enable but nothing is logged until you SET GLOBAL slow_query_log = 0; and reset it back to SET GLOBAL slow_query_log = 1;

**Now it would log just for that day.

**come the next day, nothing in the slow log. Repeat the above command over again and it would log entries for that day.

IT team are using Ansible and logrotate is in place. Could it be that it is not properly flushing the file after rotation? or Is Ansible changing conf daily? Or is mariadb writing to a stale file descriptor?

***slow log output: FILE

[***********@itv-mysql01 ~]$ cat /etc/logrotate.conf

# see "man logrotate" for details

# rotate log files weekly

weekly

# keep 4 weeks worth of backlogs

rotate 4

# create new (empty) log files after rotating old ones

create

# use date as a suffix of the rotated file

dateext

# uncomment this if you want your log files compressed

#compress

# RPM packages drop log rotation information into this directory

include /etc/logrotate.d

# no packages own wtmp and btmp -- we'll rotate them here

/var/log/wtmp {

    monthly

    create 0664 root utmp

        minsize 1M

    rotate 1

}

/var/log/btmp {

    missingok

    monthly

    create 0600 root utmp

    rotate 1

}

Please suggestions are welcome to arrive at a permitting solution