I completed an update for fortigate VM to 6.4.7. which worked fine. However, it knocked out a policy for HAproxy which caused an outage of our applications through http and https.
Its seems that all traffic is getting dropped at HAproxy.
I rolled back to the previous software version and found it was still the same. But once I put the back up config file on, all applications fired back up.
Is there a security feature or new feature in the config causing the issue I had??