If anything I would say that maybe that particular strain needs more light than the other beans you popped in there, to my not very expert eyes it looks like the plant needs way more light, the plant does not look deficient like you said.
Mine did that at about the same time as yours due to excess manipulation, however, I can see the tips of your leaves burnt and that means you are overfeeding which could probably add up to the cause of the early pistil discoloration.
My uneducated guess would be that certain terpenes are louder than others, my nose might not be very refined I guess yet but I usually fail to perceive the "gassy" terpenes in strains like sour diesel, it also happens to me with "cheese" strains and "earthy" terpenes.
However, I can smell...
My bad on the costs, to be honest I do not live in a country where... we are developed lol. Getting those QBs here is very costly, I mean VERY costly, like considering wages and currency exchanges and all, around 20 times more, no joke.