Websites using SSL certs through VLANS now being blocked due to Cert Error after upgrade to V16

Hi,

I have 2 XG230's. One at site a and the other at site b.

Site A - 172.16.0.0 - VLAN0
           172.16.50.0 - VLAN50
Site B - 172.16.10.0 - VLAN5

1 Webserver on VLAN0, an other webserver on VLAN50. Both set to use SSL certs.

No error for Site A going to Webserver on VLAN0, but error when going to VLAN50.
Error for Site B going to webservers on VLAN5 or 50.

Only thing to change has been the upgrade from V15 to 16.01.1 last night.

I get certificate warning errors when trying to open said sites. We don't use SSL scanning/decrypting policies on them. The certificate that its trying to use is the devices own SSL cert. I do have an external SSL cert running and that is fine when logging in to the device.

Does anyone have any ideas?

Thanks.