I believe there is a known issue that sometimes missions don't launch despite all prerequisites being fulfilled.
But it could be something else:
When you assign DOFFs to the assignment slots, make sjure you do not re-use any DOFFs. One (glaring?) problem with the current UI is that it still shows you DOFFs you have already selected, and this can lead to you selecting a DOFF you already selected for a previous slot - clearing the previous slot.
Star Trek Online Advancement: You start with lowbie gear, you end with Lobi gear.
Another thing that's easy not to notice is that one ore more requirements are not fulfilled (like missing doffs or items). On many missions you have to scroll sideways on that point to see all of them.
Which wasn't the case in the old (better) UI....just saying....
Comments
But it could be something else:
When you assign DOFFs to the assignment slots, make sjure you do not re-use any DOFFs. One (glaring?) problem with the current UI is that it still shows you DOFFs you have already selected, and this can lead to you selecting a DOFF you already selected for a previous slot - clearing the previous slot.
Which wasn't the case in the old (better) UI....just saying....