arcane slot not showing up, help

If you go to your marketplace and you search for war frame slots, you can see here that you can purchase a slot for 20 Platinum right there But if you don't

Wiki states that this slot is unlocked the moment you acquire your first Warframe Arcane You may need to relog to see this There's Arcane

warframe complete starter slot bundle The Primary Arcane Adapter is a special item that can be fused with a Primary Weapon to unlock a Primary Arcane Slot, which is a special additional slot

warframe slot bundle The process is simple: Choose a weapon -> upgrade -> unlock Arcane slots, exilus mod slot, arcane slots, use catalyst reactor etc