In 6.3rc1, I am seeing an issue in trying to change the interface in IP > Addresses using Webfig.
On my RB951G, the default configuration for IP >Addresses has two lines by default – the dynamic address from the ISP (number = 1, below) and the address for the local network (number = 0). For the sake of this example, suppose these are:
0 192.168.88.1/24 192.168.88.0 wlan1
1 D 1.2.3.4/22 1.2.3.0 ether1-gateway
If I go into Webfig and change that wlan1 to bridge-local, click Apply, then OK, then log out and back in, that setting reverts to wlan1. Obviously, the expected behavior is that the setting should persist. If I make the change via ssh from the command line, it works as expected.
This seems roughly similar to, but not exactly the same as, the first item in this report against 6.2 final.