My experience is similar, but Herbal Entrepeneurs jumped straight to my completed list with the ! in front of it.
I'm playing on PC (edited)
My order of events (in case it helps for bug replication):
I triggered the Emergency S.O.S. quest while exploring, but did not follow up on it yet.
I found the Broken Family location.
I talked to everyone except the salarian.
The asari gave me the quest to fix the antenna, which I did.
After completing the Broken Family quest, I talked to the salarian and got the sun lamp.
I was cleaning up other quests, and went to the Emergency S.O.S. site and encountered the grow operation.
In the conversation, I gave them the sun lamp and they said I could take a sample.
Herbal Entrepeneurs marked as complete in my completed tasks and has a ! next to it that won't go away. Also, the ! won't go away in front of the Completed Tasks folder.
I scanned the plants (it was pretty twitchy with the targeting in this one), and SAM suggested they might help (something I knew from doing the Oblivion-related quests earlier, weird narrative)
The Fever-related quest (I forget the name) will not trigger and appear in my quest list, and I can't interact with anything else in the room. I seem to be stuck at this point, a bug as far as I can tell.
Hope the details help!
exactly the same issues as shadowchasers has concisely summarised in his post better than my original one
EA are you gonna fix Running a Fever quest not triggering upon scanning the plants or talking to the Nexus Refuge Turian doctor?
Running a Fever doesn't trigger, can't gather plant after I've cleared out Herbal Entrepreneurs and given them the UV light from the Salarian. Playing on PC, Female Ryder, patch 1.08.
Same here, on PC
