Monit is currently executing once. I can see in the log file that it does a check every cycle, however, the execution only happens once when I reload monit.
check host somehost with address example.com
# every "* 8-19 * * 1-5"
if failed
port 443
protocol https
and certificate valid > 1095 days
then exec "/var/local/bin/mtCert.sh"