New growth yellow, bleached tips

Dli and vpd are fine. Your on week 5 and haven't applied any more fertiliser to the light mix. Your light mix has most likely been depleted of the nutrition Your plant needs, it time to start adding a Bloom nute to it.

Before doing anything, I would start with the easiest path first. The beginning of light burn. It almost looks like a Nute Burn but your explanation leads to believe otherwise. I have had micronutrient absorption problems (zinc) due to PH and it looked very similar

I forget one thing, you are giving every week calmag, if you have tap with salts inside you don't need to add this nutirent at all.

Hello mate, i see from your diary that the pH'solution is too high. You had 7 in veg phase, too much hig, it should be close to 6.2 then in flowering phase you should have a maximum 6.5. Try to give them a solution with pH 6 for two or three times and look how will evolve, then returns to the 6.5. Good luck and happy journey.