Bezzyanswered grow question 5 years ago I'm currently in the 70+day range for the same strain, if you want to look at my diary. I'm growing 4 and they all are weird, none of them started to flower until day 50+. One still hasn't and is clearly a photoperoid. I think the RQS NLA genetics went a bit off the rails. There are a few people (youtube, here, etc) that plants didn't/wont finish or vegged forever. I will say your night time temps are pretty low. Anything under 60 F , the plants can start to stunt or die.
RQS strain is to blame here, me thinks.