I’m guessing that the delay might have something to do with this. Instead of setting the delay to 0.1, we’ll try removing the code for delay altogether. Can you make the following changes within the BP_EquippedItemState blueprint:
Since you already have firing animations, we don’t really need any sort of external cooldown. So might as well remove the cooldown timer and immediately end the cooldown state. We can go further than remove the call for cooldown event altogether, but for now, just let me know if this fixes the infinite loop error.