syndicate laboratory bug (betrayal, research)

I entered the syndicate research mechanic, but no syndicate members spawned, only the normal and rare mods spawned.

I've read that similar situations happened to others before, but the event failed (members 'retreated') after completing other syndicate event in the same zone; whereas in my case, the bug remains and nothing happened after i cleared all content in that map (still no members in the laboratory).

i hope that the description is clear enough and its a bug that you guys can fix.