Instance.new() not working? bug?

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#1

In my combat script, I have a function that when called, spawns a Instance.new() on the specified player’s humanoid:

local function SpawnInstance(a,b,c,d)												
	local v = Instance.new(a,b)	
	v.Name = c									
	v.Value = true	
	delay(d,function()						
		v:Destroy()									
	end)			
end
SpawnInstance("BoolValue",Humanoid,"Name",1)

The problem is, it will only spawn on the humanoid if the script goes like this.

local function SpawnInstance(a,b,c,d)												
	local v = Instance.new(a,b)	
	v.Name = c									
	v.Value = true	
	wait(d)					
	v:Destroy()											
end
SpawnInstance("BoolValue",Humanoid,"Name",1)

As you may notice, the only difference is in how the script waits before destroying the instance. I am utterly bamboozled. Any ideas?

#2

You are passing the humanoid as a parent on both examples. Why you are expecting a different result?

#3

The problem is, the results ARE different. Did you read “The problem is, it will only spawn on the humanoid if the script goes like this.”

#4

Perhaps the DebrisService would help here:

local DS: DebrisService = game:GetService("Debris")

function spawn(obj_type, par, name, duration)
    local obj: obj_type = Instance.new(obj_type)
    obj.Name = name
    obj.Parent = par
    DS:AddItem(obj, duration)
end
#5

Yes, sorry I forgot to mention. That’s what I originally had it as, it didn’t work. I just tried it again after reading your post, still doesn’t spawn the instance on the Humanoid.

#6

I’ve tried both of your snippets, and they work fine. Are you sure it’s this code that’s causing the issue?

#7

Yeah both works same for me as expected. Your problem is not related to these functions.

#8

You are right. The code is not the problem. I replicated it elsewhere in the script and it worked. Super weird though, it doesn’t throw any errors.


print("1")
SpawnInstance("BoolValue",Humanoid,"Slicing",SliceLength+.01)
print("2)

it also prints “1” and “2”. All the conditions required to run this code are met, and those same conditions that run a bunch of other code work just fine. I’ll keep digging.