Custom Archetype not allowing Familiar

[TotusGnarus]

I've created a custom archetype for Magus that grants a Hunter's animal companion and Woodland Stride. My player is now choosing to take a familiar through the use of Magus Arcana, but even after adding the Arcana, the familiar option won't appear. I've removed the custom archetype, which suddenly allows a familiar, confirming that the archetype is the issue. Any ideas on why this is happening? Thanks in advance.