Plant's trichomes not maturing

So I have this Crystal Meth auto plant by Fast Buds and it should have been ready to harvest by now but the trichomes are still clear. I have already harvested other 2 plants, different strain but still autos and I sow them at the same time, in fact they were completely ready 1 week ago even with some amber color trichomes, but this one still has clear trichomes, and I check every 5 days or so and still the same.

I need to mention that I ran into some problems with this one, namely, drainage problems and ph-sensitivity problems that caused some deficiencies such as calcium deficiencies and also nitrogen toxicity at some point, so the plant looked like crap and grew like crap but it does have its buds. By now I have cut almost all fan leaves (it had very little) and now it only has the bud leaves.

Normal?

What should I do?

I've never grown autos but I think I heard somewhere that they react badly to unintentional "situations" that may occur but again no experience with autos, but I bet stress from all the previously mentioned issues has got a bit to do with it. I hope you find more info.

It will finish just be patient. Stress can prolong ripening but trichomes never lie; stay vigilant

It will finish. Some autos will not amber. It will cloud up though.

Most any seed will take longer than stated breeder times.