hey there Cremo , what i can see starting from vegetation weeks is that there was an excess of N , so this kind of held back the growth of the plant overall, in fact until now it's still there. You can see it from the "too dark" and "shiny" aspect of the leafs . Cut back on the N next time, just in case. Sometimes some genetics or phenotypes are just a bit more sensitive than others to nutrients. i guess you got unlucky this time. Hope this helps ! ๐