Familiar enchantment and conjuration

Good day. I noticed some oddities that I can’t understand. I tried to assemble a build on ice spheres with conjuration.

  1. I installed Fractured Winterglass
  2. I have both a frost ball and familiars installed on the panel
  3. When using the sphere, spears and familiars and hydras and blades appear. It would seem that everything is okay BUT
  4. The familiar spell should summon a familiar of the same element as the other conjuration used with a 25% chance, but no matter how much I spam the sphere, the familiar never appears with a hydra, spear or blades, only as a single summon from the amulet effect.
  5. Electric spears have a passive for summoning two spears, but the amulet always summons only one spear, while the modifier for the additional hydra head works properly.
  6. For the sake of interest, I put a hydra on the panel instead of a familiar, and the enchantment specifically for the hydra worked, that is, with a 25% chance, the hydra could summon a fire familiar. At the same time, throwing spheres now instead of an ice familiar, a single call of the amulet began to call only fire familiars.

Can anyone tell me where exactly the bugs are here, and what works correctly?