Firewall rules not applied after reboot

[Deagan]

TITLE:

Firewall rules not applied after reboot​

PRODUCT, VERSION, OPERATING SYSTEM, ARCHITECTURE:

Plesk Onyx 17.5.3 Update #47, CentOS 7.5 / Virtual machine running under Virtuozzo 7 latest version / kernel 3.10.0-693.17.1.vz7.43.10​

PROBLEM DESCRIPTION:

After updating to CentOS 7.5 the Plesk firewall rules are not applied after a reboot. CentOS 7.4 worked without problems.​

STEPS TO REPRODUCE:

- Install Plesk / CentOS 7.4
- Update os to CentOS 7.5: yum update
- Reboot​

ACTUAL RESULT:

Firewall rules are not applied.

After reboot clicking modify firewall rules > apply > applies the firewall rules again, then fail2ban > apply to create fail2ban rules

I did install this bugfix, but this did not resolve the issue:
Plesk Firewall rules are not active if restart/reload iptables​

EXPECTED RESULT:

Plesk firewall rules applied after reboots to prevent unexpected downtime.​

ANY ADDITIONAL INFORMATION:

​

YOUR EXPECTATIONS FROM PLESK SERVICE TEAM:

Confirm bug​