Hairpin NAT not working since 1.6.0 to 1.9.0 upgrade

Hi all,

I've just upgraded my ERPoE5 from 1.6.0 to 1.9.0 and have noticed that the Hairpin NAT function has stopped working. 

I have a number of services running locally on my network which are shared out via the WAN using NAT. For consistency, these services must be accessible via their FQDN while on the LAN. 

I haven't changed any config settings at all since upgrading, hairpin has just stopped working.

Any assistance you can offer would be greatly appreciated. 

[[ For some reason every time I add my config to this topic in a codebox, the topic is removed ]]