Right now my NPCs are climbing things they shouldn’t be to get places and I don’t want them to climb at all. Can I disable the ability for them to climb with pathfinding?
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https://developer.roblox.com/api-reference/function/Humanoid/SetStateEnabled
https://developer.roblox.com/api-reference/function/PathfindingService/CreatePath
Disabling climb or jump for the humanoid (first link) or turning off AgentCanJump (second link) would be the first things I’d look at. I don’t see anything specifically related to climbing in the pathfinding docs, just jumping.
Then they just walk into walls. 
Frustrating.
hmm. That’s a drag. How tall are the objects? I read somewhere that pathfinding voxelizes the world in something similar to what’s done with terrain. If the objects are smaller than 4 studs (or whatever the threshold is) then they may not be seen as obstacles. Might also be possible to create hidden geometry in places that shares a collision group with only NPCs to fine tune some of that. Are you sure they are climbing and not jumping onto and over things?
I added invisible geometry. The NPCs are client-sided so the other option didn’t work, but more geometry helped.
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Looks like obstacles with a height <= 6 don’t register as obstacles and don’t trigger the blocking. The NPC just walks up to it and stands there. Over 6 and it plots a path around it.
Setting that AgentCanJump parameter in CreatePath to false works in my test for anything taller than 1.
local path = PathfindingService:CreatePath({AgentRadius=2,AgentHeigh=5,AgentCanJump=false})
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It was climbing on shelves so the height was irrelevant. It knew it could climb them or something.
Your first solution worked in my case though 
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