Weeping Angel-style mob

Hi, I'm making a custom hostile mob called the Splinter that should 
freeze when the player looks at it, similar to the Weeping Angels 
from Doctor Who.

I'm using Snail's Plugin for the "Has [entity] line of sight to 
[entity]" block. My procedure is set up like this:

- Global trigger: On player tick update
- For each entity in square cube size 32
 - If Entity iterator is type Splinter
   - If Has Event/target entity line of sight to Entity iterator
     - Attempt to stop navigation of Entity iterator

The problem is the Splinter does a step-pause-step-pause movement 
instead of moving smoothly. It seems like the procedure is 
constantly interrupting the mob's pathfinding even when the player 
is not looking at it.

I have these AI tasks set up on the Splinter:
- Attack entities of type Player
- Do melee/contact attack speed 1.5
- Wander around speed 0.5
- Watch closest entity Player radius 32
- Look around

Code view:
package net.mcreator.thebackwoods.procedures;

/* imports omitted */

@EventBusSubscriber 
public class SplinterOnEntityTickUpdateProcedure { 
    @SubscribeEvent 
    public static void onPlayerTick(PlayerTickEvent.Post event) { 
        execute(event, event.getEntity().level(), event.getEntity().getX(), event.getEntity().getY(), event.getEntity().getZ(), event.getEntity()); 
    } 

    public static void execute(LevelAccessor world, double x, double y, double z, Entity entity) { 
        execute(null, world, x, y, z, entity); 
    } 

    private static void execute(@Nullable Event event, LevelAccessor world, double x, double y, double z, Entity entity) { 
        if (entity == null) 
            return; 
        boolean blocked = false; 
        double zc = 0; 
        double zc2 = 0; 
        double yc = 0; 
        double yc2 = 0; 
        double Grow = 0; 
        double d = 0; 
        { 
            final Vec3 _center = new Vec3(x, y, z); 
            for (Entity entityiterator : world.getEntitiesOfClass(Entity.class, new AABB(_center, _center).inflate(32 / 2d), e -> true).stream().sorted(Comparator.comparingDouble(_entcnd -> _entcnd.distanceToSqr(_center))).toList()) { 
                if (entityiterator instanceof SplinterEntity) { 
                    if (entity instanceof LivingEntity _entity ? _entity.hasLineOfSight(entityiterator) : false) { 
                        if (entityiterator instanceof Mob _entity) 
                            _entity.getNavigation().stop(); 
                    } 
                } 
            } 
        } 
    } 
}

MCreator version: 2025.3
NeoForge: 1.21.1

Any help appreciated.