Summon familiar sometimes fails without any message

[Eraamion]

About 20% of time summoning a familiar fails. Nothing happens, no message, no vfx. I have then rest to be able to summon one again.

[Disorder]

Can confirm. Been happening for my sorcerer too.

[Astegard]

Can confirm, tested this in the ponds next to the fire.

[Secutor]

I have been experiencing this as well. Character Blannis Pike.