You can't invite people to dojo to trade after finishing a mission

[where_is_maxine]

There; so if you have been staying (and being returned to) in your clan's dojo doing missions via the nav in the Observatory and plan on inviting people over to trade during your downtime, you can't actually invite them because you get a mission-objective-complete-unable-to-invite message, with the 'objective' being referred to as the mission you just accomplished. To make inviting/trading possible again, you have to leave the dojo, have yourself appear in your Orbiter, then go there again...which is eehh, I mean, please do something about this.