Help with leaf problem… possible nutrient lockout?

You didn't flush nearly enough... you've still got a lockout because your pH is still much too high. To do a proper flush, you need to run, since you're growing in a 20L pot, 60 liters of pH'd water through her... seriously!! Give her 1/2 strength nutes in the last 2L of water along with 1ml of calmag and let her dry out. The pH WILL come down as long as you do this! Good luck - just keep going!

I have to quote some text writen by m0use a few questions ago. "Thats some tasty looking ‘juicy pussy’ You must be popular will all the boys in town..lol" But for your leave problem, pH is too high. You need to bring it back to 6.5 Now do not give a very low pH to compensate. But instead give some more water with the right pH till 20% runoff for once just to bring the pH from the given solution into the soil. And to flush out the grow nutrients because they contain too much nitrogen. This is the time to step over to bloom nutrients! You plant needs more P and K and less N. Enjoy your grow!