New nodes seem to be hiding from the light

Hello brother . I run Marshydro lights too . My opinion is 50 cm first 2 weeks and after 40cm . I never go 60 cm . Under 50 cm is more better . i use Ts1000 and i dont have problem with this distance . Good luck

Drop the light down to 45cm and see how she responds. Also with a light that weak, I recommend looking up the "lollipopping" technique as your light can't do much for anything that low on the plant.

Yes you need to start to move the light a inch a day till you are 18 inches away check for signs of stress your in late veg. Also if you want more light to the inside tuck the leaves if you cant tuck it out of the way remove it but I dont recommend removing leaves this early more around week 6 then again at week 9 if needs more

some rise and fall of leves can occur... if it is droopy all the time try raising lights, sure... another clue is internodal spacing... how much growth between newest nodes... look okay? or packed on top of each other? Obviously, they grow out of each other, so common sense applied on "newest" growth. only other consideration -- is this always after a watering? might want to use more perlite and or vermiculite for drainage.