Just encountered this on PS4. It's very frustrating because it means that my Journal is now forever showing an unviewed quest with no option to clear it (why isn't there a "Set all as viewed"? option for the Journal and Codex, anyway?). I spoke to the doctor about the medicine before encountering the drug chemists and scanning the plant and when I looked at my Journal I realised that the quest entry was bugged.
I was unaware of the Doctor needing new medicine until the quest log triggered when i picked up the plant from a distress call from raiders in the area. I got the samples by giving them the UV lights and the journal said i had to hand it to a DOctor who needed it on Kadara, but i have absolutely no idea who that is or where that is due to the shoddy map and lack of minimap on screen...
I have a couple like that. Seems to be restricted to Tasks though.
Maybe the plants need a while to 'bud' lol
Has anyone else tried waiting a while, doing other missions to see if you can get the plants later?
The way they say "go ahead and take some" kinda suggests you should be able to take it immediately though
Having this problem too.
