Or you can add 1 or 2 tablespoons of dry bloom fertilizer ( Flower girl / Happy frog fruit and flower / etc ) to also feed it.
Dry fertilizer application will breakdown in plant over roughly 2 weeks - feeding it. Then you can continue feed as necessary as deep flower comes along.
You can add a few cups worth of fresh FFOF to top soil and simply water in. Soil’s buffering may be waning by now.
A solid topdress will recharge that host medium.
Sometimes autos throw ruderalis phenotype characteristics- also some autos end up as high leaf to calyx plants.
Wouldn’t overthink it too much. Many auto seed offerings are not fully fleshed out lines.
It looks like they were still ready to feed even tho they look like they are in last stages. Best to ween down feeding at end instead of outright starvation.
They are hungry AF - that leaf issue is from K deficiency ( symptoms ride along margins / edges ) and often mimic nute burn but is a deficiency instead.
Later bloom often needs a higher ppm as flowers are taking up much more nutrients for flower .
This problem was because you cut nutrients...