Issue with Falcao's ABS and the knockback

The script: https://falcaorgss.wordpress.com/2012/12/02/falcao-pearl-abs-liquid-v1/

When you hit a enemy with a sword there's no problem but when I hit a enemy with a bow and the enemy is near a "cant pass through" tile he can get knocked back inside that tile and gets stuck forever, when respawning, that enemy is still inside that tile and can not get out
This is the weapon I am using:
User Graphic = $Bow
User Anime Speed = 20
Tool Cooldown = 30
Tool Graphic = $Arrow
Tool Index = 0
Tool Size = 1
Tool Distance = 8
Tool Effect Delay = 10
Tool Destroy Delay = 20
Tool Speed = 6
Tool Cast Time = 0
Tool Cast Animation = 0
Tool Blow Power = 1
Tool Piercing = false
Tool Animation When = hit
Tool Animation Repeat = false
Tool Special = nil
Tool Target = true
Tool Invoke Skill = 0
Tool Guard Rate = 0
Tool Knockdown Rate = 70
Tool Sound Se = arrowSE
Tool Cooldown Display = false
Tool Item Cost = 0
Tool Short Jump = false
Tool Through = true
Tool Priority = 1
Tool Hit Shake = false
Tool Self Damage = false
Tool Combo Tool = nil


I uploaded a screenshot so you can see what I'm talking about, there, the monster is inside the tree. It does not happen every time the monster is near a non-through tile, only sometimes. I think it happens if you hit them at the same time they are moving. They are knocked inside those tiles