Explosion.hit does not work when I try to make explosion.hit worK?

I was making TNT for a voxel building game. And for some reason Explosion.Hit doesn't work. All blocks have a size of (4, 4, 4).

local explosion = Instance.new("Explosion")
explosion.BlastRadius = 20
explosion.Position = tnt.Position
explosion.DestroyJointRadiusPercent = 0

print("caiedskm")

explosion.Hit:Connect(function(p, d)
	print(p.Name) --nothing prints when I touch explosion
	
	if p.Parent:FindFirstChild("Humanoid") then
		p.Parent.Humanoid.PlatformStand = true
	end
	
	if not p.Anchored then
		if d == 0 then d = 0.1 end
		
		p.Velocity = p.Velocity + (p.Position - explosion.Position) / d * 300 --explosion does not send parts flying at a unrealistically high velocity
	end
	
	if string.sub(p.Name, 1, 5) == "part " then
		print("Found part on explosion")
		local attr = string.split(p.Name, " ") --terrain block names go by "part (x) (y) (z)" (in grid space)
		workspace.ExplosionOnCell:Fire(tonumber(attr[2]), tonumber(attr[3]), tonumber(attr[4]))
	end
end)

explosion.Parent = workspace

tnt:Destroy()

P.S. "caiedskm" is just some random letters I typed. I wrote the line to see if print was working.

P.P.S. The terrain blocks are anchored. I'm not sure if that affects the hit event.

Tried setting the parent of explosion as a different part all together, just welded to the TNT or something of the such?