Installed on my recent 18.04.1 install and had the same issue. I had to go home for the weekend so I’m not at my desktop so I can’t check a few things.
Does running it from the terminal (republicanywhere) provide any errors?
Did this persist between boots? Sometimes a reboot can fix an issue like that.
I’m not 100% who to tag for this but I’ll tag @southpaw in case this is something important.
edit: I’ll tag @bsmith as well since southpaw is on vacation.