My Npc AI target 'PlayerController0' - How can I prevent this ?

Hello everyone,

Well, I have a small problem with my NPCs today.

When I start my simulation, as soon as my Npc detect me in their visual perception (Sense Sight), their state changes from Passive/Idle to Attacking. So far, everything works fine - they correctly target my character.

However, when I approach and hit them from behind, they start targeting the PlayerController0 of my character and move towards it. Essentially, it’s as if they get stuck indefinitely on an empty spot where my character spawned.

How can I prevent my NPCs from targeting this element ?
I put a picture of the problem and the variable and function concerned .

Thanks in advance.