keep in line with default

init.lua

@@ -245,12 +245,12 @@ local function add_effects(pos, radius, drops)
 			local def = minetest.registered_nodes[name]
 			if def then
 				node = {name = name}
-			end
-			if def and def.tiles and def.tiles[1] then
+				if def.tiles and type(def.tiles[1]) == "string" then
 					texture = def.tiles[1]
 				end
 			end
 		end
+	end
 
 	minetest.add_particlespawner({
 		amount = 32, -- 64