Solspace Gallery Extended Extension: settings not compatible with MSM

I posted this over at the Solspace forums last week, but haven’t gotten any response yet so I guess I’ll post it here too…

The Gallery Extended Extension only allows me to assign galleries to one site’s weblogs at a given time… When I update the settings for site 2, all of the site 1 settings are cleared, and vice versa.

Is this a known bug, did I do something wrong, or am I the first to try to use it this way?