Edit route, gateway drop down missing entry

[voluhar]

I had strange issue, which resolved after reboot.
I added gateway and than wanted to add static route.
In Edit route window, under gateway drop down, there were only old gateways (DHCP WAN, ...), but not new one.
Finally I rebooted router and no drop down is updated, and also if I add another gateway it is instantly available in drop down.

Did anyone else had same issue before ?