Need help with a random seed generated room settings

I have a system to randomize room settings with a random seed. I did this because if the random system generated something impossible, i can reproduce it. The bug is that it is impossible to get a median number. Here is the code:

            local traverseseed = Random.new():NextInteger(1,50)
			local traverseindict = Instance.new("IntValue")
			traverseindict.Name = "seed"
			traverseindict.Value = traverseseed
			traverseindict.Parent = traverseroom
			
			for _,item:Model in pairs(chapter.traverseCritItems[traverseroom.Name]:GetChildren()) do
				local takenspawns = {}
				local previousindex = 0
				local itemspawn = nil
				local index = 1
				for count = 1,traverseseed,1 do
					index = math.clamp(count,1,#chapdata.traverseCRITITEMspawns[traverseroom.Name])
					print("indexs: "..index.." "..previousindex.." "..#chapdata.traverseCRITITEMspawns[traverseroom.Name].." ".."origcount: "..count)
					task.wait()
					if index > #chapdata.traverseCRITITEMspawns[traverseroom.Name] or previousindex == #chapdata.traverseCRITITEMspawns[traverseroom.Name] then
						print("reseting index")
						previousindex = 0
						index = 1
						print("resetted indexs: "..index.." "..previousindex.." "..#chapdata.traverseCRITITEMspawns[traverseroom.Name].." ".."origcount: "..count)
					end
					previousindex = index
					if not table.find(takenspawns,chapdata.traverseCRITITEMspawns[traverseroom.Name][index]) then
						itemspawn = chapdata.traverseCRITITEMspawns[traverseroom.Name][index]
						table.insert(takenspawns,itemspawn)
					else
						local failed = false
						local attempts = 10
						repeat
							attempts -= 1
							index += 1
						until not table.find(takenspawns,chapdata.traverseCRITITEMspawns[traverseroom.Name][index]) or attempts == 0
						if attempts == 0 then
							warn("Not enough spawns for all items, deleting")
							item:Destroy()
						end
					end
					task.wait()
				end
				item:PivotTo(itemspawn)
				item.Parent = traverseroom
			end

Thanks for any help!
(if you want to test a early access build of the game, dm me. dont flag this post pls lol)

any help? its really really bugging me