Hello ​@OlivierC,

Can you be more specific? What exactly is your symptom?

I have same issue, after changing a few hosts in GUI, changes wasnt be apply. Changes on master works fine, after reloading configuration works fine, but pollers doesn't receive changed.

Fine, i think i found solution.

On poller:

First, check logs: /var/log/centreon-broker/
If You using centreon_vmware plugin, just go to /etc/centreon and do: chown centreon-gorgone:centreon centreon_vmware.json

chown centreon-gorgone:centreon /etc/centreon/centreon_vmware.json 
chmod 664 /etc/centreon/centreon_vmware.json 
systemctl restart gorgoned