Why does npc pathfinding change when npc is large

[nizypizy2000]

for some reason, when the npc is large then it will bump into wall and get stuck

but when the npc is normal sized it works perfectly fine

npc stuck.rbxl (160.8 KB)
the npc pathfinding script can be found in serverscriptservice and the noobpath module can be found in serverstorage

plz help plz

[logieMaster23 (encrypt)]

probably because its a small space it cant read/reach the path - make the scale a little smaller on character or make that door hole bigger

[nizypizy2000]

oh yeahhhh!!! thx it works when i do that!

also, when you change the hipheight of the npc it works too!