Only one fan lighting up on my Arctic Liquid Freezer III when using an ARGB adapter splitter

So my motherboard (ASUS ROG STRIX B550-F GAMING) only has 1 argb connector and i needed two since my gpu stand also uses that aswell as my cooler, the arctic freezer.

Until the splitter arrived i used the motherboard connector on the cooler and it worked perfectly, but now that i use the splitter only 1 fan lights up and the others dont. The coolers header is without pins so i needed to manually insert the 4-1, 3 pins into the splitter so that it can connect to my cooler, and thats where the issue starts i believe as the gpu stand works perfectly, with and without the manual pins being used.

Ive tried using all 4 heads on the splitter and it doesnt work, rotating and flipping the pins and the headers dont work. i have no clue!

Please help!