Amnesia Haze Auto #1

What color are the stems? Red? That will be an indication of lock out or deficiency. Keep in mind, that all deficiency that show are 2-3 weeks lagging. Sometimes no corrective action is needed as it was taken weeks ago.

So far you have only used autoflower supermix mix along with a PK bloom fertilizer. grow or bloom mixtures normally do not have calcium and magnesium added as tap water can have enough of both already. Leaving the decision to the grower and how they water. I can tell there is slight salt build up as damage on tips of leaf is from osmosis related to high EC. Flush to remove excess buildup then reapply balanced fert with extra dose of calmag see how she does. It would also help to check your PH if your plant is lacking 2 of the big 3 cations then your PH will most likely be closer to 6, you dont want it ever touching the 5's make sure to keep an eye on that too.

Between week 7 and 8 on your diary she took a nose dive. If all the basics are met I would say it's lockout for her to turn so quickly. She does need cal/mag but it won't help if locked out. In many of your photos she's had drooping leaves, could be from having just watered . Just make sure of the basics. lights, temp, humidity, pH, airflow