I just looked at your diary and the amount of nutrients you are using per Litre are insanely high. Do you measure the EC/ppm?
You should only be using at this stage a simple grow A and B, a root stimulator and maybe half strength cal mag which is usually 0.5 ml per litre.
Also in soil my ph would be more towards 6.4 6.5.
Cut back on all the other stuff apart from what I mentioned and check for progress.
It might be beneficial do give them just ph’d water on the next feed and see if things improve.
If you have a EC/ppm meter pour some ph’d water through and measure the run off for ph and EC/ppm level to give you a idea what’s in the substrate.
Hope this helps buddy and any questions fire away👍