6.47 webfig interfaces names and selection menus

I’m just working on an 850Gx2 which I’ve updated to 6.47. Interface name selection and display appears to be borked in webfig.

Here is the Interfaces page showing vlans and customised names for the ethernet ports:
drop-down.png
The addresses page shows unknown for vlan and openvpn interface names and the standard interface names for the physical interfaces and bridge.
addresses.png
Anywhere you find a dropdown list of interfaces it only shows the physical interfaces with the standard names, and the bridge, no vlan interfaces etc:
interfaces.png
In winbox everything appears to be fine (also appears fine in the CLI):
winbox.png