I've reported this in the past a long time ago and see how the issue is still present. No big deal really but yet kind of annoying.
Whenever I refresh SimBrief via the GSX menu followed by picking the refueling option, the GSX menu is closed and nothing happens. I will then need to reopen the GSX menu and select the refueling option a second time. Then it will work as normally and the refueling action is triggered.
Am I the only one seeing this?